John Cartledge PhD, P.Eng

Professor Emeritus

Emeritus Faculty, Electrical and Computer Engineering
Phone: 613-533-2935
Walter Light Hall, Room: 301


Expertise: Optical Communication Systems
John  Cartledge
Biography Research Teaching Publications

John Cartledge received the BSc degree in mathematics and engineering in 1974 and the MSc and PhD degrees in mathematics in 1976 and 1979, respectively, from Queen's University, Kingston, Ontario, Canada.

In 1979 he joined Bell-Northern Research, Ottawa, as a Member of the Scientific Staff. His work involved fiber-optic systems for the exchange access network and high-capacity digital radio systems. In 1982 he joined the Department of Electrical Engineering, Queen's University where his research has focused on optical fiber transmission systems. In 2017 he became Professor Emeritus with the Department of Electrical and Computer Engineering, continuing to conduct research and supervise graduate students. Dr. Cartledge spent sabbatical leaves with Bellcore, Red Bank, NJ, in 1988-89, Tele Danmark Research, Hørsholm, Denmark, in 1995-96, Corning Inc., Corning, NY, in 2009-10, and Ciena, Ottawa, ON, in 2014 and 2017.

Dr. Cartledge is a Fellow of Optica (formerly the Optical Society of America), a Fellow of the Institute of Electrical and Electronics Engineers (IEEE), a former IEEE Photonics Society Distinguished Lecturer (2008-2010), and recipient of the IEEE Canada Outstanding Engineering Educator Award (2009). His conference organization activities include serving on the Technical Program Committees for the Optical Fiber Communication Conference (1994-1997 and 2005-2006), the IEEE LEOS Annual Meeting (2002-2008), and the European Conference on Optical Communication (1997, 2006-2015). He was a Program Co-Chair and General Co-Chair for the Optical Fiber Communication Conference (2008 and 2010, respectively), and a Program Chair for the IEEE Photonics Society Summer Topical Meeting (2009). He is a former Associate Editor for IEEE Photonics Technology Letters and a former Editor-In-Chief for IEEE Journal of Selected Topics in Quantum Electronics.

Topics currently being investigated include the following:

  • Digital signal processing for transmitters and receivers in coherent optical fiber transmission systems
  • Signal processing algorithms for compensating transmission impairments
  • Techniques for assessing the implications of transmission impairments on system performance
  • Techniques for monitoring transmission system performance


Recent Journal Papers (last six years)

H. Hagan, Y. Xie, R. Das, A. S. Kashi, J. C. Cartledge, and A. P. Knights, “Modification of the Electrical Properties of a Silicon Waveguide Avalanche Photodetector Operating at 1550 nm via Defect Engineering,” IEEE/Optica J. Lightwave Technol., accepted.

Jain and J. C. Cartledge, “Analysis of Bandwidth Narrowing in Wavelength Selective Switch Enabled DP-64QAM Systems with Transceiver Noise,” IEEE/Optica J. Lightwave Technol., vol. 41, no. 14, pp. 4590-4597, 2023.

J.C. Cartledge and A. I. Abd El-Rahman, “Outage Probability Due to PDL Using Threshold Exceedances: Implications of DD-LMS Equalization and Inter-Channel Fiber Nonlinearities,” IEEE/Optica J. Lightwave Technol., vol. 40, no. 15, pp. 4974-4982, 2022.

J.C. Cartledge and A. I. Abd El-Rahman, “Impact of Transceiver Noise on the Outage Probability due to Polarization Dependent Loss,” IEEE Photon. Technol. Lett., vol. 33, no. 1, pp. 59-62, 2021.

J.C. Cartledge and A. I. Abd El-Rahman, “Estimating the Outage Probability Due to Polarization Dependent Loss Using Threshold Exceedances,” IEEE/OSA J. Lightwave Technol., vol. 39, no. 1, pp. 136-145, 2021.

Deb and J. C. Cartledge, “Employing a Kramers-Kronig Receiver with a Directly-Modulated Laser,” Optics Communications, vol. 479, 126472, 2021.

Deb and J. C. Cartledge, “Employing Signal-to-noise-and-distortion Ratio for Power Loading of a Directly Modulated Laser in an FDM System,” Optics Communications, vol. 475, 126195, 2020.

E. Hagan, M. Ye, P. Wang, J. C. Cartledge, and A. P. Knights, “High-Speed Performance of a TDFA-Band Micro-Ring Resonator Modulator and Detector,” Optics Express, vol. 28, no. 11, pp. 16845-16856, 2020.

J.C. Cartledge and A. I. Abd El-Rahman, “Estimating the Outage Due to Polarization Dependent Loss Based on the Bit-wise Achievable Information Rate for Probabilistically Shaped 64-QAM,” IEEE/OSA J. Lightwave Technol., vol. 38, no. 11, pp. 3023-3029, 2020.

Li, J. C. Cartledge, and A. I. Abd El-Rahman, “Performance Implications of Cascaded Wavelength Selective Switches on a Probabilistically Shaped 64-QAM System,” IEEE/OSA J. Lightwave Technol, vol. 38., no. 6, pp. 1184-1193, 2020.

J.C. Cartledge and M. O’Sullivan, “Time- and Frequency-Domain Characterization of the Relative Intensity Noise of a Quantum-Dot Frequency Comb Source Laser,” IEEE J. Selected Topics Quantum Electron., vol. 25, no. 6, 1900809, 2019.

S. Kashi, A. I. Abd El-Rahman, J. C. Cartledge, and S. A. Etemad, “Shaping Distribution Identification Using Artificial Neural Networks for Rate-Adaptive Probabilistically Shaped 64-QAM Signals,” IEEE/OSA J. Lightwave Technol., vol. 37, no. 13, pp. 3252-3260, 2019.

I. Abd El-Rahman and J. C. Cartledge, “Implications of Distributed Link Polarization Dependent Loss on Bit-Wise Achievable Information Rates for Probabilistically Shaped and Uniform DP 64-QAM,”IEEE/OSA J. Lightwave Technol., vol. 37, no. 4, pp. 1187-1194, 2019.

S. Kashi, Q. Zhuge,J. C. Cartledge, S. A. Etemad,A. Borowiec, D. Charlton, C. Laperle, and M. O’Sullivan, "Nonlinear Signal-to-Noise Ratio Estimation in Coherent Optical Fiber Transmission Systems Using Artificial Neural Networks," IEEE/OSA J. Lightwave Technol., vol. 36, no. 23, pp. 5424-5431, 2018.

Wang, Y. Gao, J. C. Cartledge, E. Huante-Ceron, D. Logan, and A. P. Knights, “DSP-enabled 104 Gb/s 16-QAM Nyquist Subcarrier Modulation Using a Silicon Micro-Ring Resonator," IEEE Photonics Technol.Lett., vol. 30, no. 17, pp. 1571-1574, 2018.

J.C. Cartledge, "Performance of Coherent Optical Fiber Transmission Systems," Frontiers of Optoelectronics, vol. 11, no. 2, pp. 128-133, 2018.

I. Abd El-Rahman and J. C. Cartledge, “Evaluating the Impact of Geometric Constellation Shaping on the Mutual Information of Multidimensional Formats in Fully Loaded Systems,” IEEE/OSA J. Lightwave Technol., vol. 36, no. 3, pp. 712-720, 2018.

J.C. Cartledge, F. Matos, C. Laperle, A. Borowiec, M. O'Sullivan, and K. Roberts, “Use of Extreme Value Statistics to Assess the Performance Implications of Cascaded ROADMs,” IEEE/OSA J. Lightwave Technol., vol. 35, no. 23, pp. 5208-5214, 2017.

Wang, D. Paez, A. I. Abd El-Rahman, P. Wang, L. Dow, J. C. Cartledge, and A. P. Knights, “Resonance Control of a Silicon Micro-ring Resonator Modulator Under High-speed Operation Using the Intrinsic Defect-mediated Photocurrent,” Optics Express, vol. 25, no. 20, pp. 24827-24836, 2017.

Vedala, M. Al-Qadi, M. O’Sullivan, J. Cartledge, and R. Hui, “Phase Noise Characterization of a QD-based Diode Laser Frequency Comb,” Optics Express, vol. 25, no. 14, pp. 15890-15904, 2017.

Bakhshali, W.-Y. Chan, A. Rezania, and J. C. Cartledge, “Detection of High Baud-Rate Signals with Pattern Dependent Distortion Using Hidden Markov Modeling,”IEEE/OSA J. Lightwave Technol., vol. 35, no. 13, pp. 2612-2621, 2017.

J.C. Cartledge, F. P. Guiomar, F. R. Kschischang, G. Liga, and M. P. Yankov, “Digital Signal Processing for Fiber Nonlinearities,” Invited Paper,Optics Express, vol. 25, no. 3, pp. 1916-1936, 2017.

Gao, J. C. Cartledge, A. S. Kashi, S. S.-H. Yam, and Y. Matsui, “Direct Modulation of a Laser Using 112 Gb/s 16-QAM Nyquist Subcarrier Modulation,” IEEE Photonics Technol.Lett., vol. 29, no. 1, pp. 35-38, 2017. 

Recent Selected Conference Presentations (last six years)

Jain and J. C. Cartledge, “Performance Implications of Cascaded ROADMs on DP 64-QAM Systems with Transceiver Noise,” Frontiers in Optics + Laser Science, 16-20 October 2022.

S. Kashi, J. C. Cartledge, and W.-Y. Chan, “Neural Network Training Framework for Nonlinear Signal-to-Noise Ratio Estimation in Heterogeneous Optical Networks,” Optical Fiber Communication Conference, 6-11 June 2021.

J.C. Cartledge, C. Laperle, D. Charlton, and M. O’Sullivan, “Impact of Cascaded Noise Response on the Performance of a DP-QPSK System with Optical Filtering,” OSA Signal Processing for Photonic Communications, 12-16 July 2020.

J.C. Cartledge and A. I. Abd El-Rahman, “Implications of Polarization Dependent Loss on the Performance of Probabilistically Shaped 64-QAM,” European Conference on Optical Communication, Dublin, Ireland, 22-26 September 2019.

Jain, A. I. Abd El-Rahman, and John C. Cartledge, “Optimization of Two-stage carrier Phase Estimation for Probabilistic Shaping,” European Conference on Optical Communication, Dublin, Ireland, 22-26 September 2019.

Wang, J. C. Cartledge, and W.-L. Chan, “Pre-compensation of Nonlinear Distortion of a Silicon Microring Modulator Using Back-calculation,” Numerical Simulation of Optoelectronic Devices, Ottawa, ON, 8-12 July 2019.

I. Abd El-Rahman, J. C. Cartledge, and L. Li, “Bit-wise Achievable Information Rates for Probabilistically Shaped 64-QAM in the Presence of Polarization Dependent Loss,” European Conference on Optical Communication, Rome, Italy, 23-27 September 2018.

Li, A. I. Abd El-Rahman, and J. C. Cartledge, “Effect of Bandwidth Narrowing due to Cascaded Wavelength Selective Switches on the Generalized Mutual Information of Probabilistically Shaped 64-QAM Systems,” European Conference on Optical Communication, Rome, Italy, 23-27 September 2018.

Zanette, J. C. Cartledge, R. Hui, and M. O’Sullivan, “Phase Noise Characterization of a Mode-Locked Quantum-Dot Coherent Optical Frequency Comb Source Laser,” Optical Fiber Communication Conference, San Diego, CA, 11-15 March 2018.

S. Kashi, Q. Zhuge, J. Cartledge, A. Borowiec, D. Charlton, C. Laperle, and M. O'Sullivan, “Artificial Neural Networks for Fiber Nonlinear Noise Estimation,” Invited Paper, Asia Communications and Photonics Conference, Guangdong, China, 10-13 November 2017.

S. Kashi, Q. Zhuge, J. C. Cartledge, A. Borowiec, D. Charlton, C. Laperle, and M. O’Sullivan, “Fiber Nonlinear Noise-to-Signal Ratio Monitoring Using Artificial Neural Networks,” European Conference on Optical Communication, Gothenburg, Sweden, 17-21 September 2017.

I. Abd El-Rahman and J. C. Cartledge, “Multidimensional Geometric Shaping for QAM Constellations,” European Conference on Optical Communication, Gothenburg, Sweden, 17-21 September 2017.

J.C. Cartledge, “Volterra-based Nonlinear Mitigation,” Invited Paper, OSA Signal Processing for Photonic Communications, New Orleans, LA, 24-27 July 2017.

I. Abd El-Rahman and J. C. Cartledge, “Estimating the Performance of Fully Loaded DWDM Systems with Multidimensional Modulation,” Conference on Lasers and Electro-Optics, paper JTh2A.60, San Jose, CA, 14-19 May 2017.

Zanette, J. C. Cartledge, and M. O’Sullivan, “Correlation Properties of the Phase Noise Between Pairs of Lines in a Quantum-Dot Optical Frequency Comb Source,” Optical Fiber Communication Conference, Los Angeles, CA, 19-23 March 2017.

Y. Gao, Z. Wang, J. C. Cartledge, S. S.-H. Yam, and A. P. Knights, “56 Gb/s Single-Carrier 16-QAM and 32-QAM Subcarrier Modulation Using a Silicon Micro-Ring Resonator,” Optical Fiber Communication Conference, Los Angeles, CA, 19-23 March 2017



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