Coherent Access: Status and Opportunities

Coherent technology has the potential to be a disruptive technology for access networks. However, deployment of coherent-access remains challenging due to its higher complexity and power-consumption compared with conventional approaches. Herein we review present research status on reduced-complexity coherent PON and outline the future opportunities.

[1]  J. Bauwelinck,et al.  A 50 Gbit/s PAM-4 Linear Burst-Mode Transimpedance Amplifier , 2019, IEEE Photonics Technology Letters.

[2]  Victor Polo,et al.  Simplified polarization diversity heterodyne receiver for 1.25Gb/s cost-effective udWDM-PON , 2014, OFC 2014.

[3]  Wolfgang Freude,et al.  Colorless Coherent Passive Optical Network using a Frequency Comb Local Oscillator , 2019, 2019 Optical Fiber Communications Conference and Exhibition (OFC).

[4]  Seb J. Savory,et al.  Polarization-Insensitive Single-Balanced Photodiode Coherent Receiver for Long-Reach WDM-PONs , 2016, Journal of Lightwave Technology.

[5]  Naoki Suzuki,et al.  100 Gb/s to 1 Tb/s Based Coherent Passive Optical Network Technology , 2018, Journal of Lightwave Technology.

[6]  Weisheng Hu,et al.  Machine Learning for 100 Gb/s/λ Passive Optical Network , 2019, Journal of Lightwave Technology.

[7]  Seb J. Savory,et al.  A low complexity hybrid time-frequency domain adaptive equalizer for coherent optical receivers , 2016, 2016 Optical Fiber Communications Conference and Exhibition (OFC).

[8]  Zheng Liu,et al.  Performance Comparison of Coherent and Direct Detection Schemes for 50G PON , 2020, 2020 Optical Fiber Communications Conference and Exhibition (OFC).

[9]  Polina Bayvel,et al.  Comparison of Low Complexity Coherent Receivers for UDWDM-PONs ( $\lambda$-to-the-User) , 2017, Journal of Lightwave Technology.

[10]  Jun-ichi Kani,et al.  OLT Receiver for Power Normalization of Burst OFDM Signals Enabling OFDM/TDMA-PON , 2014, IEEE Photonics Technology Letters.

[11]  Josep Prat,et al.  Polarization-independent heterodyne DPSK receiver based on 3×3 coupler for cost-effective udWDM-PON , 2017, 2017 Optical Fiber Communications Conference and Exhibition (OFC).

[12]  Seb J. Savory.  Digital coherent optical access networks , 2013, 2013 IEEE Photonics Conference.

[13]  Victor Polo,et al.  Flexible D(Q)PSK 1.25–5 Gb/s UDWDM-PON with directly modulated DFBs and centralized polarization scrambling , 2015, 2015 European Conference on Optical Communication (ECOC).

[14]  Xu Zhang,et al.  Real time low-complexity adaptive channel equalization for coherent optical transmission systems. , 2020, Optics express.

[15]  Ricardo M. Ferreira,et al.  Coherent Access: A Review , 2017, Journal of Lightwave Technology.

[16]  Min Zhang,et al.  Low-Complexity Adaptive Chromatic Dispersion Estimation Scheme Using Machine Learning for Coherent Long-Reach Passive Optical Networks , 2019, IEEE Photonics Journal.

[17]  Junwen Zhang,et al.  Passive Optical Networks for 5G Transport: Technology and Standards , 2019, Journal of Lightwave Technology.

[18]  Mohit Chamania,et al.  Artificial Intelligence (AI) Methods in Optical Networks: A Comprehensive Survey , 2018, Opt. Switch. Netw..

[19]  Hadrien Louchet,et al.  Robust Single Polarization Coherent Transceiver Using DGD Pre-Distortion for Optical Access Networks , 2016, 2016 Asia Communications and Photonics Conference (ACP).

[20]  Hadrien Louchet,et al.  DSP algorithms for recovering single-carrier Alamouti coded signals for PON applications. , 2016, Optics express.

[21]  Naoki Suzuki,et al.  Hardware-Efficient Adaptive Equalization and Carrier Phase Recovery for 100-Gb/s/λ-Based Coherent WDM-PON Systems , 2018, Journal of Lightwave Technology.

[22]  Ernesto Ciaramella,et al.  Assessment of a Polarization-Independent DSP-Free Coherent Receiver for Intensity-Modulated Signals , 2020, Journal of Lightwave Technology.