Chair of Communications

Prof. Dr.-Ing. Dipl.-Wirt. Ing. Stephan Pachnicke

Prof. Dr. Stephan Pachnicke Room: C-029A
Fon: +49 (0)431 880 6300
Fax: +49 (0)431 880 6303
stephan.pachnicke@tf.uni-kiel.de

 

Curriculum Vitae:

Professor Pachnicke was born in Dortmund, Germany, in 1977. He received the MSc degree in Information Engineering from City University, London, United Kingdom in 2001 and the Dipl.-Ing. (MSc equivalent) and Dr.-Ing. (PhD equivalent) degrees in electrical engineering from TU Dortmund, Germany, in 2002 and 2005, respectively. In 2005 he also got the Dipl.-Wirt.-Ing. degree in business administration (MBA equivalent) from FernUniversität, Hagen, Germany. In January 2012 he finished his habilitation on optical transmission networks and since then also works as Privatdozent (adjunct professor) at TU Dortmund.

From 2007 until 2011 he was working as Oberingenieur at the Chair of High Frequency Technology, TU Dortmund. Afterwards he was with ADVA Optical Networking SE in the Advanced Technology Group (CTO Office), where he was leading EU-funded research projects on next generation optical access. Furthermore, he was working on concepts for fixed-mobile convergence (FMC) and next generation data centers. Since 2016 he has been working as Full Professor of Optical Communications and Director of the Institute of Electrical Engineering and Information Technology at Christian-Albrechts-University of Kiel, Germany.

He is author or co-author of more than 100 scientific publications among them 5 books and more than 25 journal contributions. Furthermore, he is (co-) inventor of several patents.

Stephan Pachnicke received several awards for his work among them the ITG award for outstanding research publications (ITG-Preis 2012), the PhD thesis award of TU Dortmund (Dissertationspreis 2006) and the VDE price for the best MSc thesis (VDE Preis Rhein/Ruhr 2002). He is a member of VDE/ITG and a Senior Member of IEEE. Professor Pachnicke is serving on the technical program committee of the European Conference of Optical Communication (ECOC) and on ITG technical committee KT3 (optical communications).

 

Publications:

Books:

  1. "Fiber-Optic Transmission Networks : Efficient Design and Dynamic Operation", ISBN: 978-3-642-21054-9, Springer, Berlin, 2011.
  2. "Fast Analytical Assessment of the Signal Quality in Transparent Optical Networks", ISBN: 978-3832243678, Shaker Publishing, 2005.
  3. "Vergleich unterschiedlicher heuristischer Verfahren für das «Vehicle routing problem with time windows»", ISBN: 978-3638681902, Grin Publishing, 2005.
  4. "Constraint based routing due to physical impairments in automatically switched transport networks", ISBN: 978-3638934330, Grin Publishing, 2002.
  5. "Bragg Gratings in Semiconductor Waveguides", ISBN: 978-3638708784, Grin Publishing, 2001.

 

Articles and Letters in Journals:

  1. A. Krohn, G. Forkel, P. Hoeher, S. Pachnicke, "LCD-based Optical Filtering Suitable for Non-Imaging Channel Decorrelation in VLC Applications", IEEE J. Lightw. Technol. (JLT), vol. 37, no. 23, pp. 5892-5898, Dezember 2019.
  2. R. Weixer, J. Koch, P. Plany, S. Ohlendorf, S. Pachnicke, "Mitigation of Nonlinear Impairments by Using Support Vector Machine and Nonlinear Volterra Equalizer", J. Appl. Sci., Special Issue "Optics for AI and AI for Optics", vol. 9, no. 18, 3800, September 2019.
  3. A. Sandmann, A. Ahrens, S. Lochmann, S. Pachnicke, "Performance Evaluation of Mode Group Power Coupling for Short Reach SDM", Elsevier J. Opt. Fiber Technol. (OFT), vol. 48, pp. 22-27, March 2019.
  4. J. Koch, S. Li, S. Pachnicke, "Transmission of Higher Order Solitons created by Optical Multiplexing", IEEE J. Lightw. Technol. (JLT), vol. 37, 2019.
  5. M. Balanici, S. Pachnicke, "Hybrid Electro-Optical Intra-Data Center Networks tailored for Different Traffic Classes", IEEE/OSA J. Opt. Commun. and Netw. (JOCN), vol. 10, no. 11, pp. 889-900, Nov. 2018.
  6. S. Ohlendorf, S. Pachnicke, W. Rosenkranz, „Multidimensional PAM with Pseudo-Gray Coding for Flexible Data Center Interconnects”, IEEE Photonics Technology Letter (PTL), vol. 30, no. 12, pp. 1143 - 1146 , June 2018.
  7. Dennis Clausen, Roi Rath, Simon Ohlendorf, Werner Rosenkranz, Stephan Pachnicke, „Experimental Demonstration of Flexible Hybrid Modulation Formats for Future Adaptive Optical Transmission Systems", IEEE J. Lightw. Technol., vol. 36, no. 12, pp. 2551 – 2558, June 2018.
  8. R. Rath, D. Clausen, S. Ohlendorf, S. Pachnicke, W. Rosenkranz, "Tomlinson-Harashima Precoding for Dispersion Uncompensated PAM-4 Transmission with Direct-Detection", IEEE J. Lightw. Technol. (JLT), vol. 35, no.18, pp. 3909-3917, September 2017.
  9. R. Martínez, A. Mayoral, R. Vilalta, R. Casellas, R. Muñoz, S. Pachnicke, T. Szyrkowiec, A. Autenrieth, “Integrated SDN/NFV Orchestration for the Dynamic Deployment of Mobile Virtual Backhaul Networks Over a Multilayer (Packet/Optical) Aggregation Infrastructure”, IEEE/OSA Journal of Optical Communications and Networking (JOCN), vol. 9, issue 2, pp. A135-A142, January 2017.
  10. M. S. Erkilinc, M. P. Thakur, S. Pachnicke, H. Griesser, J. Mitchell, B. C. Thomsen, P. Bayvel, R. I. Killey, "Spectrally Efficient WDM Nyquist Pulse-Shaped Subcarrier Modulation Using a Dual-Drive Mach-Zehnder Modulator and Direct Detection", IEEE J. Lightw. Technol. (JLT), vol. 34, no. 4, pp. 1158-1165, February 2016.
  11. S. Pachnicke, J. Zhu, M. Lawin, M. H. Eiselt, S. Mayne, B. Quemeneur, D. Sayles, H. Schwuchow, A. Wonfor, P. Marx, M. Fellhofer, P. Neuber, M. Dietrich, M. J. Wale, R.V. Penty, I. H. White, J.-P. Elbers, "(Invited) Tunable WDM-PON System with Centralized Wavelength Control", IEEE J. Lightw. Technol. (JLT), vol. 34, no. 2, pp. 812-818, January 2016.
  12. Z. Li, M. S. Erkilinc, S. Pachnicke, H. Griesser, R. Bouziane, B. C. Thomsen, P. Bayvel, R. I. Killey, "Signal-signal beat interference cancellation in spectrally-efficient WDM direct-detection Nyquist-pulse-shaped 16-QAM subcarrier modulation", OSA Optics Express, vol. 23, no. 18, pp. 23694-23709, September 2015.
  13. M. S. Erkilinc, Z. Li, S. Pachnicke, H. Griesser, B. C. Thomsen, P. Bayvel, R. I. Killey, "Spectrally-Efficient WDM Nyquist Pulse-Shaped 16-QAM Subcarrier Modulation Transmission with Direct Detection", IEEE J. Lightw. Technol. (JLT), vol. 33, no. 15, pp. 3147-3155, August 2015.
  14. M. S. Erkilinc, S. Pachnicke, H. Griesser, B. C. Thomsen, P. Bayvel, R. I. Killey, "Performance Comparison of Direct-Detection Nyquist-Subcarrier Modulation and OFDM", IEEE J. Lightw. Technol. (JLT), vol. 33, no. 10, pp. 2038-2046, May 2015.
  15. J. Zhu, S. Pachnicke, M. Lawin, S. Mayne, A. Wonfor, R. V. Penty, R. Cush, R. Turner, P. Firth, M. Wale, I. H. White, J.-P. Elbers, "(Invited) First demonstration of a WDM-PON system using novel full C-band tunable SFP+ transceiver modules", IEEE/OSA J. Opt. Commun. and Netw. (JOCN), vol. 7, issue 1, pp. A28-A36, January 2015.
  16. J. Zhu, A. Wonfor, S. H. Lee, S. Pachnicke, M. Lawin, R. V. Penty, J. -P. Elbers, R. Cush, M. Wale, I. H. White, "Athermal Colourless C-band Optical Transmitter System for Passive Optical Networks", IEEE J. Lightw. Technol. (JLT), vol. 32, no. 22, pp. 3651-3658 , November 2014.
  17. K. Grobe, M. Eiselt, S. Pachnicke, J.-P. Elbers, "(Invited) Access Networks based on Tunable Lasers", IEEE J. Lightw. Technol. (JLT), vol. 32, no. 16, pp. 2815-2823, August 2014.
  18. M. S. Erkilinc, S. Kilmurray, R. Maher, M. Paskov, R. Bouziane, S. Pachnicke, H. Griesser, B.C. Thomsen, P. Bayvel, R.I. Killey, "Nyquist-shaped dispersion-precompensated subcarrier modulation with direct detection for spectrally-efficient WDM transmission ", OSA Optics Express, vol. 22, no.8, pp. 9420-9431, April 2014.
  19. M. Westhäuser, M. Finkenbusch, C. Remmersmann, S. Pachnicke, P. Krummrich, "Optical Filter-Based Mitigation of Group Delay Ripple- and PMD-Related Penalties for High Capacity Metro Networks", IEEE J. Lightw. Technol. (JLT), vol. 29, no. 16, pp. 2350-2357, August 2011.
  20. S. Pachnicke, S. Özdür, H. Griesser, C. Fürst, P. Krummrich, "Sensitivity to Signal Quantization of 43 Gb/s and 107 Gb/s Optical 16-QAM OFDM Transmission with Coherent Detection", Elsevier J. Opt. Fiber Technol. (OFT), vol. 15, no. 5, pp. 414-419, October 2009.
  21. S. Pachnicke, N. Luck, H. Müller, P. Krummrich, "Multidimensional Meta-Model Based Optimization of Optical Transmission Systems", IEEE J. Lightw. Technol. (JLT), vol. 27, no. 13, pp. 2307-2314, July 2009.
  22. S. Pachnicke, T. Paschenda, P. Krummrich, "Assessment of a Constraint-Based Routing Algorithm for Translucent 10-Gb/s DWDM Networks Considering Fiber Nonlinearities", OSA J. Opt. Netw. (JON), vol. 7, no. 4, pp. 365-377, April 2008.
  23. S. Pachnicke, E. Gottwald, P. Krummrich, E. Voges, "Transient Gain Dynamics in Long-Haul Transmission Systems with Electronic EDFA Gain Control", OSA J. Opt. Netw. (JON), vol. 6, no. 9, pp. 1129-1137, September 2007.
  24. A. Steinkamp, M. Windmann, S. Pachnicke, "More accurate simulation of dynamic transparent optical wavelength division multiplex networks", Int. J. Electron. Commun. (AEÜ), vol. 61, no. 3, pp. 147-152, March 2007.
  25. S. Pachnicke, T. Gravemann, M. Windmann, E. Voges, "Physically Constrained Routing in 10-Gb/s DWDM Networks Including Fiber Nonlinearities and Polarization Effects ", IEEE J. Lightw. Technol. (JLT), vol. 24, no. 9, pp. 3418-3426, September 2006.
  26. S. Pachnicke, J. Reichert, S. Spälter, E. Voges, "Fast Analytical Assessment of the Signal Quality in Transparent Optical Networks", IEEE Journal of Lightwave Technology (JLT), vol. 24, no. 2, pp. 815-824, February 2006.
  27. S. Pachnicke, E. De Man, S. Spälter, E. Voges, "Impact of the Inline Dispersion Compensation Map on Four Wave Mixing (FWM) - Impaired Optical Networks", IEEE Photonics Technology Letters (PTL), pp. 235-237, vol. 17, no. 1, January 2005.
  28. S. Pachnicke, N. Hecker-Denschlag, S. Spälter, J. Reichert, E. Voges, "Experimental Verification of Fast Analytical Models for XPM-Impaired Mixed-Fiber Transparent Optical Networks", IEEE Photonics Technology Letters (PTL), vol. 16, no.5, pp. 1400-1402, May 2004.

 

Conference Papers:

  1. T. Wettlin, T. Rahman, J. Wei, S. Calabro, N. Stojanovic, S. Pachnicke, "Complexity Reduction of Volterra Nonlinear Equalization for Optical Short-Reach IM/DD Systems", ITG Conference "Photonic Networks", Leipzig, Germany, November 2020.
  2. J. Koch, A. Moscoso-Martir, J. Mueller, S. Pachnicke, J. Witzens, "Silicon Photonics DWDM NLFT Soliton Transmitter", ITG Conference "Photonic Networks", Leipzig, Germany, November 2020.
  3. A. Krohn, P. Hoeher, S. Pachnicke, "Single-LED VLC-Transmission with AMI and RZ-OOK for Dimming Support at Fixed Data Rate", Advanced Photonics Congress (SPPCom 2020), Montreal, Canada, July 2020.
  4. S. Dev, S. Li, S. Pachnicke, K. Jamshidi, "Optimization of a Silicon Micro-Ring Resonator for Photonic Reservoir Computing", Advanced Photonics Congress (IPR 2020), Montreal, Canada, July 2020.
  5. S. Li, S. Pachnicke, "(Invited) Photonic Reservoir Computing in Optical Transmission Systems", IEEE Summer Topicals, Cabo San Lucas, Mexico, July 2020.
  6. K. Abdelli, H. Griesser, S. Pachnicke, "(Invited) Cognitive Laser Reliability Enhancement Using Machine Learning Techniques: A Data-Driven Perspective", International Conference on Transparent Optical Networks (ICTON) Bari, Italy, July 2020.
  7. R. Weixer, J. Koch, S. Ohlendorf, S. Pachnicke, "(Invited) Experimental Demonstration of Nonlinearity Compensation by Using SVM and Nonlinear Volterra Equalizer for 80 GBd DP-16-QAM", International Conference on Transparent Optical Networks (ICTON), Bari, Italy, July 2020.
  8. A. Moscoso-Martir, J. Koch, J. Müller, S. Sharif Azadeh, S. Pachnicke, J. Witzens, "Silicon Photonics DWDM NLFT Soliton Transmitter Implementation and Link Budget Assessment", European Conference on Integrated Optics (ECIO), Paris, France, June 2020.
  9. S. Li, S. Dev, K. Jamshidi, S. Pachnicke, "Photonic Reservoir Computing enabled by Active Silicon Micro-Rings with Transparent Signal Injection", Conference on Lasers and Electro-Optics (CLEO 2020), San Jose, USA, May 2020.
  10. M. Schaedler, S. Calabro, F. Pittala, C. Bluemm, M. Kuschnerov, S. Pachnicke, "Neural Network-Based Soft-Demapping for Nonlinear Channels ", Optical Fiber Communication Conference (OFC 2020), San Diego, USA, March 2020.
  11. M. Schaedler, S. Calabro, F. Pittala, G. Boecherer, M. Kuschnerov, C. Bluemm, S. Pachnicke, "Neural Network Assisted Geometric Shaping for 800Gbit/s and 1Tbit/s Optical Transmission", Optical Fiber Communication Conference (OFC 2020), San Diego, USA, March 2020.
  12. T. Wettlin, T. Rahman, J. Wei, S. Calabro, N. Stojanovic, S. Pachnicke, "Comparison of PAM Formats for 200 Gb/s Short Reach Transmission Systems", Optical Fiber Communication Conference (OFC 2020), San Diego, USA, March 2020.
  13. K. Abdelli, D. Rafique, H. Griesser, S. Pachnicke, "Lifetime Prediction of 1550 nm DFB Laser using Machine learning Techniques", Optical Fiber Communication Conference (OFC 2020), San Diego, USA, March 2020.
  14. K. Abdelli, D. Rafique, H. Griesser, S. Pachnicke, "An Artificial Neural Network Approach for Laser Lifetime Prediction", ITG-Workshop "Modelling of Photonic Components & Systems", Karlsruhe, Germany, February 2020.
  15. S. Dev, S. Li, S. Pachnicke, K. Jamshidi, "Optimization of a silicon micro-ring resonator for reservoir computing", ITG-Workshop "Modelling of Photonic Components & Systems", Karlsruhe, Germany, February 2020.
  16. J. Koch, S. Pachnicke, "Impact of Linear WDM Soliton Superposition on the NFT-Spectrum", Workshop "Nonlinear Fourier Transforms", Delft, Netherlands, February 2020.
  17. T. Wettlin, S. Ohlendorf, T. Rahman, J. Wei, S. Calabro, N. Stojanovic, S. Pachnicke, "Beyond 200 Gb/s PAM4 Transmission using Tomlinson-Harashima Precoding", European Conference on Optical Communication (ECOC 2019), Dublin, Ireland, September 2019.
  18. J. Koch, R. Weixer, S. Pachnicke, "Equalization of Soliton Transmission Based on Nonlinear Fourier Transform using Neural Networks", European Conference on Optical Communication (ECOC 2019), Dublin, Ireland, September 2019.
  19. S. Li, S. Ohlendorf, S. Pachnicke, "100 km 56 GBd PAM-4 Transmission using Photonic Reservoir Computing", European Conference on Optical Communication (ECOC 2019), Dublin, Ireland, September 2019.
  20. S. Ohlendorf, T. Wettlin, S. Pachnicke, W. Rosenkranz, "Optimized Flexible Mappings with Multidimensional Modulation for Coherent Optical Transport", European Conference on Optical Communication (ECOC 2019), Dublin, Ireland, September 2019.
  21. K. Abdelli, D. Rafique, S. Pachnicke, "(Invited) Machine Learning based Laser Failure Mode Detection", International Conference on Transparent Optical Networks (ICTON), Angers, France, July 2019.
  22. M. Balanici, S. Pachnicke, "(Invited) Multi-Step Forecasting of Intense Traffic Streams Using Machine Learning for Optical Circuit Switching", International Conference on Transparent Optical Networks (ICTON), Angers, France, July 2019.
  23. S. Ohlendorf, T. Wettlin, S. Pachnicke, W. Rosenkranz "(Invited) Adaptive Optical Transmission Systems employing Multidimensional Modulation", International Conference on Transparent Optical Networks (ICTON), Angers, France, July 2019.
  24. S. Li, S. Pachnicke, "Evaluation of Photonic Reservoir Computing for Use in Short Reach PAM-4 Transmission Systems", ITG Conference "Photonic Networks", Leipzig, Germany, May 2019.
  25. J. Koch, J. Mueller, A. Moscoso-Martir, J. Witzens, S. Pachnicke, "DWDM Soliton Transmission enabled by Integrated Photonics and Nonlinear Fourier Transform", ITG Conference "Photonic Networks", Leipzig, Germany, May 2019.
  26. M. Balanici, S. Pachnicke, "Server Traffic Prediction Using Machine Learning for Optical Circuit Switching Scheduling", ITG Conference "Photonic Networks", Leipzig, Germany, May 2019.
  27. M. Balanici, S. Pachnicke, "Machine Learning-Based Traffic Prediction for Optical Switching Resource Allocation in Hybrid Intra-Data Center Networks", Optical Fiber Communication Conference (OFC 2019), San Diego, USA, March 2019.
  28. M. Schaedler, M. Kuschnerov, S. Pachnicke, "Subcarrier Power Loading for Coherent Optical OFDM optimized by Machine Learning", Optical Fiber Communication Conference (OFC 2019), San Diego, USA, March 2019.
  29. R. Weixer, P. Plany, S. Pachnicke,"Nonlinear Impairment Compensation by Using Support Vector Machine and Nonlinear Volterra Equalizer", ITG-Workshop "Modelling of Photonic Components & Systems", Meiningen, Germany, February 2019.
  30. S. Ohlendorf, S. Pachnicke, W. Rosenkranz, "Minimizing the Oversampling Rate in Bandwidth-Variable Optical Kramers-Kronig IM/DD-Transmission with Multidimensional PAM", International Conference on Systems, Communications and Coding (SCC), Rostock, Germany, February 2019.
  31. S. Ohlendorf, S. Pachnicke, W. Rosenkranz, "Bandwidth-Variable DWDM Transmission for Data Center Interconnects Using Multidimensional PAM", Asia Communications and Photonics Conference (ACP), Hangzhou, China, October 2018.
  32. A. Krohn, P. A. Hoeher, S. Pachnicke, „Visible Light Tricolor LED-to-Camera Data Transmission Suitable for Internet-of-Things and Sensor Applications”, European Conference on Optical Communication (ECOC), Rome, Italy, September 2018.
  33. J. Koch, S. Li, S. Pachnicke, „Separation of Bounded Higher-Order Solitons by Exploiting Collisions in WDM Transmission Systems”, European Conference on Optical Communication (ECOC), Rome, Italy, September 2018.
  34. S. Ohlendorf, R. Joy, S. Pachnicke, W. Rosenkranz, „Flexible PAM in DWDM Transmission with Kramers-Kronig DSP“, European Conference on Optical Communication (ECOC), Rome, Italy, September 2018.
  35. J. Koch, S. Li, S. Pachnicke, "Nonlinear Fourier Transform based Optical Transmission using Electronic-Photonic Signal Processing", 10th Sino-German Joint Symposium on Opto- and Microelectronic Devices and Circuits (SODC 2018), Aachen, Germany, September 2018.
  36. M. Balanici, S. Pachnicke, "Intra-Data Center Network Optimization by means of Application-based Traffic Modeling and Optical Circuit Switching", International Conference on Transparent Optical Networks (ICTON), Bucharest, Romania, July 2018.
  37. S. Ohlendorf, R. Joy, S. Pachnicke, W. Rosenkranz, "Optimizing Reach and Capacity of IM/DD Systems by Using Multidimensional PAM and DSP", Advanced Photonics Congress (SPPCom), Zurich, Switzerland, July 2018.
  38. B. Andrus, A. Autenrieth, S. Pachnicke, S. Zou, J.J. V. Olmos, and I. T. Monroy, “(Invited) Performance evaluation of NETCONF-based low latency cross-connect for 5G C-RAN architectures”, International Conference on Transparent Optical Networks (ICTON), Bucharest, Romania, July 2018.
  39. A. Krohn, S. Pachnicke, P. Höher, „Visible Light Communication with Multicarrier Modulation Utilizing a Buck-Converter Circuit as Efficient LED Driver”, ITG Conference “Photonic Networks”, Leipzig, June 2018.
  40. A. Sandmann, A. Ahrens, S. Lochmann, S. Pachnicke, „Mode Group Power Coupling Analysis for Short Reach Space Division Multiplexing”, ITG Conference “Photonic Networks”, Leipzig, June 2018.
  41. Shi Li, Jonas Koch, and Stephan Pachnicke, “Optical Signal Processing in the Discrete Nonlinear Frequency Domain”, Optical Fiber Communication Conference (OFC 2018), San Diego, USA, March 2018.
  42. J. Koch, S. Li, S. Pachnicke, „Higher-Order Soliton Transmission using Electro-Photonic Signal Processing“, ITG-Workshop "Modelling of Photonic Components & Systems", Hamburg, Germany, February 2018.
  43. A. Krohn, G. J. M. Forkel, P. A. Hoeher, and S. Pachnicke, „Capacity-Increasing 3D Spatial Demultiplexer Design for Optical Wireless MIMO Transmission”, European Conference on Optical Communication (ECOC), Gothenburg, Sweden, September 2017.
  44. S. Ohlendorf, D. Clausen, R. Rath, S. Pachnicke, W. Rosenkranz, „Comparison of Time Domain Hybrid PAM and DMT for Data Center Applications”, ITG Conference “Photonic Networks”, Leipzig, May 2017
  45. M. Balanici, S. Pachnicke, „Traffic-Modeling-Based Design and Evaluation of a Hybrid Electro-Optical Intra-Data Center Network”, ITG Conference “Photonic Networks”, Leipzig, May 2017
  46. Stephan Pachnicke, „Fixed-Mobile Convergence: Physical-Layer Implications“, ITG/DKE Workshop on „Transmission technologies for electronic media”, Magdeburg, March 2017.
  47. S. Pachnicke, “(Invited) Challenges and Solutions for Next Generation Optical Access Networks”, Sino-German Joint Symposium on Opto- and Microelectronic Devices and Circuits (SODC 2016), Changchun, China, September 2016.
  48. Z. Tayq, B. Le Guyader, P. Chanclou, S. Gosselin, D. Abdourahmane, D. P. Venmani, C. Aupetit-Methelemot, S. Pachnicke, M. Eiselt, A. Autenrieth, J. Elbers, "Fronthaul Performance Demonstration in a WDM-PON-Based Convergent Network", European Conference on Networks and Communications (EUCNC 2016), Athens, Greece, June 2016.
  49. S. Pachnicke, B. Andrus, A. Autenrieth, "(Invited) Impact of fixed-mobile convergence", Conference on Optical Networks Design and Modeling (ONDM 2016), Cartagena, Spain, May 2016.
  50. B. Andrus, A. Autenrieth, S. Pachnicke, J.J. Vegas Olmos, I.Tafur Monroy, "Live Migration Downtime Analysis of a VNF Guest for a Proposed Optical FMC Network Architecture", ITG-Conference "Photonic Networks", Leipzig, Germany, May 2016.
  51. R. Martínez, A. Mayoral, R. Vilalta, R. Casellas, R. Muñoz, S. Pachnicke, T. Szyrkowiec, A. Autenrieth, "Integrated SDN/NFV Orchestration for the Dynamic Deployment of Mobile Virtual Backhaul Networks over a Multi-layer (Packet/Optical) Aggregation Infrastructure", Optical Fiber Communication Conference (OFC 2016), Anaheim, USA, March 2016.
  52. S. Pachnicke, B. Andrus, J.-P. Elbers, "(Invited) NFV-based Universal Access for converged fixed and mobile broadband access/aggregation networks", European Conference on Optical Communication (ECOC 2015), Valencia, Spain, September 2015.
  53. M.S. Erkilinc, S. Pachnicke, H. Griesser, P. Bayvel, B.C. Thomsen, R.I. Killey, "Spectrally-Efficient Single Sideband 16-QAM Nyquist-Subcarrier Modulation-Based WDM Transmission using an InP Dual-Drive Mach-Zehnder Modulator and Direct-Detection", European Conference on Optical Communication (ECOC 2015), Valencia, Spain, September 2015.
  54. R. I. Killey, M. S. Erkilinç, Z. Li, S. Pachnicke, H. Griesser, R. Bouziane, B. C. Thomsen, P. Bayvel, "(Invited) Spectrally-efficient direct-detection WDM transmission systems", International Conference on Transparent Optical Networks (ICTON 2015), Budapest, July 2015.
  55. P. Olaszi, D. Breuer, T. Cinkler, J. A. Torrijos, S. Gosselin, A. Gravey, A. Hamidian, S. Höst, T. Mamouni, S. Pachnicke, "(Tutorial) Fixed-mobile Convergence: Infrastructure, Functionality, Services", International Conference on High Performance Switching and Routing (HPSR 2015), Budapest, Hungary, July 2015.
  56. M. S. Erkilinc, S. Pachnicke, H. Griesser, B. C. Thomsen, P. Bayvel, R. I. Killey, "Dispersion-Precompensated Direct-Detection Nyquist Pulse-Shaped Subcarrier Modulation Using a Dual-Drive Mach-Zehnder Modulator", Opto Electronics and Communications Conference (OECC 2015), Shanghai, China, June 2015.
  57. Z. Li, M.S. Erkilinc, S. Pachnicke, H. Griesser, R. Bouziane, B.C. Thomsen, P. Bayvel, R.I. Killey, "Performance Limits of Spectrally-Efficient WDM Direct-Detection SSB Nyquist Subcarrier Modulation with Signal-Signal Beat Interference Cancellation", European Conference on Network and Optical Communications (NOC 2015), London, UK, June 2015.
  58. Z. Li, M.S. Erkilinc, S. Pachnicke, H. Griesser, B.C. Thomsen, P. Bayvel, R.I. Killey, "Direct-Detection 16-QAM Nyquist-Pulse-Shaped Subcarrier Modulation with Dispersion-Precompensation and Signal-Signal Beat Interference Mitigation", International Conference on Communications (ICC 2015), London, UK, June 2015.
  59. S. Pachnicke, M. Eiselt, K. Grobe, J.-P. Elbers, "(Invited) The Frontiers of Optical Access Networks", Conference on Optical Networks Design and Modeling (ONDM 2015), Pisa, Italy, May 2015.
  60. S. Pachnicke, A. Magee, P. Turnbull, K. Grobe, J.-P. Elbers, "(Keynote) Functional and Structural Convergence of Fixed/Mobile Access Networks", ITG-Conference "Photonic Networks", Leipzig, Germany, May 2015.
  61. S. Pachnicke, S. Mayne, B. Quemeneur, D. Sayles, H. Schwuchow, J. Zhu, A. Wonfor, P. Marx, M. Lawin, M. Fellhofer, R. Turner, P. Neuber, M. Dietrich, M. J. Wale, R.V. Penty, I.H. White, J.-P. Elbers, "Field Demonstration of a Tunable WDM-PON System with Novel SFP+ Modules and Centralized Wavelength Control", Optical Fiber Communication Conference (OFC 2015), Los Angeles, USA, March 2015.
  62. M.S. Erkilinc, S. Pachnicke, H. Griesser, P. Bayvel, B.C. Thomsen, R.I. Killey, "Effect of Clipping on the Performance of Nyquist-Shaped Dispersion-Precompensated Subcarrier Modulation Transmission with Direct Detection", European Conference on Optical Communication (ECOC 2014), Cannes, France, September 2014.
  63. J. Zhu, A. Wonfor, R. Cush, M. J. Wale, S. Pachnicke, R. V. Penty, I. H. White, "High Temperature Athermal Colorless Transmitter for Low-Cost Backhaul Networks", Conference on Lasers and Electro-Optics (CLEO 2014), San Jose, USA, June 2014.
  64. S. Pachnicke, M. Lawin, J. Zhu, A. Wonfor, M. Eiselt, R. Cush, R. Turner, P. Firth, M. Wale, R. Penty, J.-P. Elbers, "Novel WDM-PON System with Shared Wavelength Locking and Full C-Band Tunability", ITG-Conference "Photonic Networks", Leipzig, Germany, May 2014.
  65. M.S. Erkilinc, S. Kilmurray, S. Pachnicke, H. Griesser, B.C. Thomsen, P. Bayvel, R. I. Killey, "Nyquist-Shaped Dispersion-Precompensated Subcarrier Modulation with Direct Detection", Optical Fiber Communication Conference (OFC 2014), San Francisco, USA, March 2014.
  66. R. Bouziane, P. A. Milder, S. Kilmurray, B. C. Thomsen, S. Pachnicke, P. Bayvel, R. I. Killey, "Blind symbol synchronisation in direct-detection optical OFDM using virtual subcarriers", Optical Fiber Communication Conference (OFC 2014), San Francisco, USA, March 2014.
  67. S. Pachnicke, J. Zhu, M. Lawin, A. Wonfor, M. Eiselt, R. V. Penty, R. Cush, R. Turner, P. Firth, M. J. Wale, I. H. White, J.-P. Elbers, "First Demonstration of a Full C-Band Tunable WDM-PON System with Novel High-Temperature DS-DBR Lasers ", Optical Fiber Communication Conference (OFC 2014), San Francisco, USA, March 2014.
  68. S. Pachnicke, A. Dochhan, M. Roppelt, M. Eiselt, J.-P. Elbers, "Experimental Demonstration of Low-Cost S- / C-Band Broadcast-Overlay in WDM-PON", Asia Communications and Photonics Conference (ACP), Beijing, China, November 2013.
  69. M.S. Erkilinc, R. Maher, M. Paskov, S. Kilmurray, S. Pachnicke, H. Griesser, B.C. Thomsen, P. Bayvel, R.I. Killey, "Spectrally-Efficient Single-Sideband Subcarrier-Multiplexed Quasi-Nyquist QPSK with Direct Detection", European Conference on Optical Communication (ECOC 2013), London, United Kingdom, September 2013.
  70. S. Pachnicke, M. Roppelt, A. Wonfor, J. Zhu, R. Penty, M. Eiselt, J.-P. Elbers, "Centralized, Pilot-Tone Based Wavelength Stabilization for WDM-PON with 1 GbE Data Rate", ITG-Conference "Photonic Networks", Leipzig, Germany, May 2013.
  71. K. Grobe, S. Pachnicke, M. Roppelt, J.-P.Elbers, M. Fellhofer, P. Neuber, M. Dietrich, "WDM-PON Field Trial at Energie AG", ITG-Conference "Broadband Networks in Germany", Berlin, Germany, March 2013.
  72. S. Pachnicke, "(Invited) GPU-based parallelization of system modeling", Optical Fiber Communication Conference (OFC 2013), Anaheim, USA, March 2013.
  73. S. Pachnicke, M. Roppelt, A. Magee, P. Turnbull, M. Eiselt, J.-P. Elbers, "Investigation of Wavelength Control Methods for Next Generation Passive Optical Access Networks", European Conference on Optical Communication (ECOC 2012), Amsterdam, Netherlands, September 2012.
  74. S. Pachnicke, M. Eiselt, H. Griesser, K. Grobe, J.-P. Elbers, "WDM-PON for next generation access networks", ITG-Conference "Photonic Networks", Leipzig, Germany, May 2012.
  75. S. Pachnicke, K. Grobe, A. Magee, J.-P. Elbers, "(Invited) Prospects of WDM-PON for mobile backhauling applications", Workshop: Building a Universal Access Platform: Can PON also Solve the Mobile Backhaul Problem?, Optical Fiber Communication Conference (OFC 2012), Los Angeles, USA, March 2012.
  76. C. Bentz, S. Pachnicke, P. Krummrich, "Combinatorial wavelength selective mirror concatenation for unambiguous subscriber line monitoring in FTTH/PON with high subscriber counts", IEEE Photonics Conference, Arlington, USA, October 2011.
  77. M. Westhäuser, C. Remmersmann, S. Pachnicke, P. Krummrich, "Optical Equalization of PMD-Induced Penalties in 112 Gbit/s Metro Networks", Signal Processing in Photonics Communications (SPPCom), Toronto, Canada, June 2011.
  78. S. Pachnicke, H. Kagba, P. Krummrich, "Load Adaptive Optical-Bypassing for Reducing Core Network Energy Consumption", ITG-Conference "Photonic Networks", Leipzig, Germany, May 2011.
  79. C. Remmersmann, M. Westhäuser, S. Pachnicke, L. Rapp, P. Krummrich, "Untersuchung und Optimierung der Reichweite von WDM-Übertragungssystemen unter Berücksichtigung stochastischer Schwankungen von Faserparametern", ITG-Conference "Photonic Networks", Leipzig, Germany, May 2011.
  80. S. Pachnicke, A. Chachaj, C. Remmersmann, P. Krummrich, "Fast Parallelized Simulation of 112 Gb/s CP-QPSK Transmission Systems using Stratified Monte-Carlo Sampling", Optical Fiber Communication Conference (OFC 2011), Los Angeles, USA, March 2011.
  81. S. Pachnicke, A. Chachaj, C. Remmersmann, P. Krummrich, "Schnelle, parallelisierte Simulation von 112 Gb/s CP-QPSK Übertragungssystemen mit automatischer Wahl von einfacher und doppelter Gleitkommagenauigkeit", ITG-Workshop, Dortmund, Germany, February 2011.
  82. S. Pachnicke, A. Chachaj, M. Helf, P. Krummrich, "Fast Parallel Simulation of Fiber Optical Communication Systems Accelerated by a Graphics Processing Unit", IEEE International Conference on Transparent Optical Networks (ICTON 2010), Munich, Germany, June 2010.
  83. M. Westhäuser, C. Remmersmann, S. Pachnicke, B. Johansson, P. Krummrich, "Optimization of Optical Equalization of Group Delay Ripple-Induced Penalties from Fiber Bragg Gratings in 112 Gbit/s Metro Networks", Optics and Photonics Congress “Advanced Photonics”, Karlsruhe, Germany, June 2010.
  84. S. Pachnicke, A. Chachaj, M. Helf, P. Krummrich, "Beschleunigte Simulation von 112 Gb/s PolMux QPSK Systemen durch Parallelisierung auf Graphikhardware", ITG-Workshop, Munich, Germany, June 2010.
  85. M. Westhäuser, C. Remmersmann, S. Pachnicke, B. Johansson, P. Krummrich, "Reduzierung von FBG-induzierten Gruppenlaufzeitschwankungen in 112 Gbit/s-Metronetzwerken mit Hilfe von generisch initialisierten Transversalfiltern", ITG-Conference "Photonic Networks", Leipzig, Germany, May 2010.
  86. C. Remmersmann, M. Westhäuser, S. Pachnicke, G. Göger, G. Kerner, P. Krummrich, "Equalization of first and second order PMD in 100 GBit/s PolMux Transmission using Optical Butterfly FIR Filters", Optical Fiber Communication Conference (OFC 2010), San Diego, USA, March 2010.
  87. S. Pachnicke, "(Invited) Is impairment aware routing useful? Is it even solvable?", Workshop: Are all-optical networks manageable?, Optical Fiber Communication Conference (OFC 2010), San Diego, USA, March 2010.
  88. S. Pachnicke, M. Helf, P. Krummrich, "GPU-beschleunigte numerische Simulation faseroptischer Übertragungssysteme", ITG-Workshop, Berlin, Germany, November 2009.
  89. M. Westhäuser, C. Remmersmann, S. Pachnicke, P. Krummrich, "Entzerrung von CFBG-induzierten Gruppenlaufzeitschwankungen mit Hilfe von FIR-Filtern in 112 GBit/s-Metronetzen", ITG-Workshop, Berlin, Germany, November 2009.
  90. S. Pachnicke, N. Luck, G. Sahin, J. Mueller, G. Reese, P. Krummrich, "Analysis of Static Versus Fully-Dynamic Routing in IP/GMPLS over WDM Optical Networks with Physical-Layer Impairment Constraints", European Conference on Optical Communication (ECOC 2009), Vienna, Austria, September 2009.
  91. S. Pachnicke, N. Luck, P. Krummrich, "Online Physical-Layer Impairment-Aware Routing with Quality of Transmission Constraints in Translucent Optical Networks", IEEE International Conference on Transparent Optical Networks (ICTON 2009), Ponta Delgada, Portugal, June 2009.
  92. S. Pachnicke, N. Luck, P. Krummrich, "Novel Physical-Layer Impairment-Aware Routing Algorithm for Translucent Optical Networks with 43 Gb/s and 107 Gb/s Channels", IEEE International Conference on Transparent Optical Networks (ICTON 2009), Ponta Delgada, Portugal, June 2009.
  93. C. Remmersmann, M. Westhäuser, S. Pachnicke, G. Goeger, G. Kerner, P. Krummrich, "Abschätzung der erforderlichen OSNR-Anhebung für kaskadierte optische Filter mit herstellungsbedingt stochastischen Eigenschaften", ITG-Conference "Photonic Networks", Leipzig, Germany, May 2009.
  94. D. Teufer, S. Pachnicke, P. Krummrich, "Modellierung und Simulation optischer IIR-Filterstrukturen zur adaptiven Kompensation chromatischer Dispersion in ultrahochbitratigen optischen Übertragungssystemen", ITG-Conference "Photonic Networks", Leipzig, Germany, May 2009.
  95. S. Pachnicke, S. Özdür, H. Griesser, C. Fürst, P. Krummrich, "Quantisierungsempfindlichkeit von kohärentem 16-QAM OFDM mit 43 Gb/s und 107 Gb/s Kanaldatenrate", ITG-Workshop, Erlangen, Germany, March 2009.
  96. S. Pachnicke, P. Krummrich, "Constraint-Based Routing in Path-Protected Translucent Networks Considering Fiber Nonlinearities and Polarization Mode Dispersion", Proc. of Asia-Pacific Optical Communications Conference (APOC 2008), Hangzhou, China, October 2008.
  97. S. Pachnicke, P. Krummrich, "Reduction of the Required Number of Electrical Regenerators by Physical Layer Impairment Aware Regenerator Placement and Routing", European Conference on Optical Communication (ECOC 2008), Brussels, Belgium, September 2008.
  98. M. Westhäuser, C. Remmersmann, S. Pachnicke, P. Krummrich, "Multikanonische Verfahren zur Simulation der Gruppenlaufzeitschwankungen von Faser-Bragg-Gittern", ITG-Workshop, Kiel, Germany, June 2008.
  99. S. Pachnicke, T. Paschenda, P. Krummrich, "Vermittlung unter Berücksichtigung von Randbedingungen durch Polarisationsmodendispersion und Fasernichtlinearitäten in transparenten optischen Übertragungsnetzwerken", ITG-Conference "Photonic Networks", pp. 183-190, Leipzig, Germany, April 2008.
  100. S. Pachnicke, T. Paschenda, P. Krummrich, "Physical Impairment-Based Regenerator Placement and Routing in Translucent Optical Networks", Optical Fiber Communication Conference (OFC 2008), OWA2, San Diego, USA, February 2008.
  101. S. Pachnicke, T. Paschenda, P. Krummrich, "Physical impairment-based regenerator placement and routing", ITG-Workshop, Stuttgart, Germany, November 2007.
  102. S. Pachnicke, E. Gottwald, P. Krummrich, E. Voges, "Combined Impact of Raman and EDFA Transients on Long Haul Transmission System Performance", European Conference on Optical Communication (ECOC 2007), P074, Berlin, Germany, September 2007.
  103. P. Krummrich, S. Pachnicke, M. Windmann, "(Invited) Interface options for 100 GbE from a physical layer perspective", Optics East 2007, Boston, USA, September 2007.
  104. S. Pachnicke, E. Gottwald, P. Krummrich, E. Voges, "Heuristic Approximation of Transient Gain Dynamics due to Network Reconfiguration", OptoElectronics and Communications Conference (OECC 2007), pp.730-731, Yokohama, Japan, July 2007.
  105. S. Pachnicke, E. Gottwald, P. Krummrich, E. Voges, "Transientenverhalten gewinngeregelter EDFAs in der Weitverkehrsübertragung", ITG-Conference "Photonic Networks", pp. 115-122, Leipzig, Germany, May 2007.
  106. S. Pachnicke, M. Obholz, E. Voges, P. Krummrich, E. Gottwald, "Electronic EDFA Gain Control for the Suppression of Transient Gain Dynamics in Long-Haul Transmission Systems", Optical Fiber Communication Conference (OFC 2007), JWA15, Anaheim, USA, March 2007.
  107. S. Pachnicke, E. Gottwald, P. Krummrich, E. Voges, "Analyse von Transienten in Metro-Netzen mit Kanaldatenraten von 107 Gb/s ", ITG-Workshop, München, Germany, February 2007.
  108. S. Pachnicke, P. Krummrich, E. Voges, "Simulationsumgebung für Transienten in transparenten optischen Übertragungsnetzen", ITG-Workshop, Nürnberg, Germany, July 2006.
  109. S. Pachnicke, J. Reichert, E. Voges, "Impact of polarization mode dispersion and fiber nonlinearities on four-wave mixing efficiency", OptoElectronics and Communications Conference (OECC 2006), 5F2-2, Kaohsiung, Taiwan, July 2006.
  110. S. Pachnicke, J. Reichert, E. Voges, "Einfluss von PMD und Fasernichtlinearitäten auf die Effizienz der Vierwellenmischung", ITG-Conference "Photonic Networks", pp. 121-126, Leipzig, Germany, April 2006.
  111. S. Pachnicke, E. Voges, E. De Man, E. Gottwald, J. Reichert, "Experimental Investigation of XPM-Induced Birefringence in Mixed-Fiber Transparent Optical Networks", Optical Fiber Communication Conference (OFC 2006), JThB9, Anaheim, USA, March 2006.
  112. S. Pachnicke, E. Voges, E. De Man, E. Gottwald, J. Reichert, "Experimentelle Untersuchung von XPM-induzierter Doppelbrechung in transparenten optischen Netzen", ITG-Workshop, Berlin, Germany, November 2005.
  113. S. Pachnicke, J. Reichert, E. Voges, "Impact of PolXPM on Optical Transmission Systems with Arbitrary Dispersion Compensation", OptoElectronics and Communications Conference (OECC 2005), pp. 512-513, Seoul, South Korea, July 2005.
  114. S. Pachnicke, J. Reichert, E. Voges, "Einfluss von PolXPM auf optische Übertragungssysteme", ITG-Conference "Photonic Networks", pp. 205-210, Leipzig, Germany, May 2005.
  115. S. Pachnicke, T. Gravemann, E. Voges, "Bedingte Vermittlung aufgrund physikalischer Degradationseffekte", ITG-Workshop, Dortmund, Germany, February 2005.
  116. S. Pachnicke, E. De Man, S. Spälter, E. Voges, "Experimental Verification of Fast Analytical Models for Four-Wave Mixing (FWM)-Impaired Transparent Optical Networks", Asia-Pacific Optical Communications Conference (APOC 2004), pp. 423-432, Beijing, China, November 2004.
  117. S. Pachnicke, S. Spälter, E. Voges, "Fast analytical models for FWM-impaired mixed-fiber transparent optical networks", OptoElectronics and Communications Conference (OECC/COIN 2004), pp. 182-183, Yokohama, Japan, July 2004.
  118. S. Pachnicke, S. Spälter, E. Voges, "FWM-Degradation in transparenten optischen Netzen mit unterschiedlichen Modulationsformaten", ITG-Conference "Photonic Networks", pp. 203-210, Leipzig, Germany, May 2004.
  119. S. Pachnicke, N. Hecker-Denschlag, J. Reichert, S. Spälter, E. Voges, "Experimentelle Bestätigung analytischer XPM-Modellierung in gemischten Fasersystemen", ITG-Workshop, Backnang, Germany, November 2003.
  120. S. Pachnicke, E. Voges, "Analytical assessment of the Q-factor due to Cross-Phase Modulation (XPM)", OptoElectronics and Communications Conference (OECC 2003), pp. 542-543, Shanghai, China, October 2003.
  121. S. Pachnicke, E. Voges, "Analytical Assessment of the Q-factor due to cross-phase modulation (XPM) in multispan WDM transmission systems", Proc. of ITCOM (SPIE Vol. 5247), pp. 61-70, Orlando, USA, September 2003.
  122. M. Windmann, S. Pachnicke, E. Voges, "PHOTOSS: the simulation tool for optical transmission systems", Proc. of ITCOM (SPIE Vol. 5247), pp. 51-60, Orlando, USA, September 2003.
  123. S. Pachnicke, E. Voges, "Analytische Bewertungsregeln für die Kreuzphasenmodulation (XPM) in Vielkanal NRZ Systemen", ITG-Conference "Photonic Networks", pp. 183-190, Leipzig, Germany, May 2003.
  124. S. Pachnicke, J. Kissing, E. Voges, "Constraint-based routing due to physical impairments in transparent optical networks", Optical Fiber Communication Conference, Workshop SB: Workshop on Tolerant Transmission For All-Optical Networks, Optical Fiber Communication Conference (OFC 2003), Atlanta, USA, March 2003.
  125. S. Pachnicke, J. Kissing, E. Voges, "Analytische Q-Faktor Bestimmung aufgrund von stimulierter Raman Streuung (SRS)", ITG-Workshop "Modellierung photonischer Komponenten und Systeme", Berlin, Germany, January 2003.
  126. J. Kissing, S. Pachnicke, A. Steinkamp, E. Voges, "Geschaltete optische Netze mit bedingter Vermittlung aufgrund physikalischer Degradationseffekte", ITG-Conference "Photonic Networks", pp. 145-154, Leipzig, Germany, April 2002.