Title:
OPTICAL COMMUNICATION SYSTEM AND OPTICAL COMMUNICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/033248
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an optical communication system and an optical communication method that can also reduce delay generated in processing for obtaining a transfer function for performing distortion correction in digital coherent transmission. The optical communication system according to the present invention transmits pilot data for estimating the transfer function in a transmission channel by a transmission channel which is short in transmission delay time, estimates the transfer function of the transmission channel prior to reception of transmission data, and applies the transfer function to another transmission channel.
Inventors:
SAGAE YUTO (JP)
MATSUI TAKASHI (JP)
SAKAMOTO TAIJI (JP)
NAKAJIMA KAZUHIDE (JP)
MATSUI TAKASHI (JP)
SAKAMOTO TAIJI (JP)
NAKAJIMA KAZUHIDE (JP)
Application Number:
PCT/JP2019/032323
Publication Date:
February 25, 2021
Filing Date:
August 19, 2019
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04B10/61; H04B10/077; H04J14/00
Foreign References:
| JP2014195149A | 2014-10-09 |
Other References:
FEUER, MARK D. ET AL.: "Joint Digital Signal Processing Receivers for Spatial Superchannels", IEEE PHOTONICS TECHNOLOGY LETTERS, vol. 24, no. 21, 2 October 2012 (2012-10-02), pages 1957 - 1960, XP011470626, DOI: 10.1109/LPT.2012.2220672
UDEN, ROY G. H. VAN ET AL.: "28-GBd 32QAM FMF Transmission With Low Complexity Phase Estimators and Single DPLL", IEEE PHOTONICS TECHNOLOGY LETTERS, vol. 26, no. 8, 10 February 2014 (2014-02-10), pages 765 - 768, XP011543773, DOI: 10.1109/LPT.2014.2305450
ALFREDSSON, ARNI F. ET AL.: "Joint Phase Tracking for Multicore Transmission with Correlated Phase Noise", 2018 IEEE PHOTONICS SOCIETY SUMMER TOPICAL MEETING SERIES (SUM, 6 September 2018 (2018-09-06), pages 15 - 16, XP033399115
M. D. FEUERL. E. NELSONX. ZHOUS. L. WOODWARDR. ISAACB. ZHUT. F. TAUNAYM. FISHTEYNJ. M. FINIM. F. YAN: "Joint Digital Signal Processing Receivers for Spatial Superchannels", IEEE PHOTON. TECHNOL. LETT., vol. 24, no. 21, 2012
M. HIRANOY. YAMAMOTOV. A. M. SLEIFFFERT. SASAKI: "Analytical OSNR Formulation Validate with 100G-WDM experiments and Optical Subsea Fiber Proposal", PROCEEDINGS OF OFC, 2013
S. ZHANGP. Y. KAMJ. CHENC. YU: "Bit-error rate performance of coherent optical M-ary PSK/QAM using decision-aided maximum likelihood phase estimation", OPTICS EXPRESS, vol. 18, no. 12, 2010, pages 12088 - 12103
T. KODAMAT. MIYAZAKIM. HANAWA: "Seamless PAM-4 to QPSK Modulation Format Conversion at Gateway for Short-reach and Long-haul Integrated Networks", ECOC, 2018, pages 1 - 3, XP033447792, DOI: 10.1109/ECOC.2018.8535511
K. KIKUCHI: "Characterization of semiconductor-laser phase noise and estimation of bit-error rate performance with low-speed offline digital coherent receivers", OPTICS EXPRESS, vol. 20, no. 5, 2012, pages 5291 - 5302
B. J. PUTTNAMG. RADEMACHERR. S. LUISJ. SAKAGUCHIY. AWAJIN. WADA: "Inter-Core Skew Measurements in Temperature Controlled Multi-Core Fiber", PROCEEDINGS OF OFC, 2018
See also references of EP 4020849A4
UDEN, ROY G. H. VAN ET AL.: "28-GBd 32QAM FMF Transmission With Low Complexity Phase Estimators and Single DPLL", IEEE PHOTONICS TECHNOLOGY LETTERS, vol. 26, no. 8, 10 February 2014 (2014-02-10), pages 765 - 768, XP011543773, DOI: 10.1109/LPT.2014.2305450
ALFREDSSON, ARNI F. ET AL.: "Joint Phase Tracking for Multicore Transmission with Correlated Phase Noise", 2018 IEEE PHOTONICS SOCIETY SUMMER TOPICAL MEETING SERIES (SUM, 6 September 2018 (2018-09-06), pages 15 - 16, XP033399115
M. D. FEUERL. E. NELSONX. ZHOUS. L. WOODWARDR. ISAACB. ZHUT. F. TAUNAYM. FISHTEYNJ. M. FINIM. F. YAN: "Joint Digital Signal Processing Receivers for Spatial Superchannels", IEEE PHOTON. TECHNOL. LETT., vol. 24, no. 21, 2012
M. HIRANOY. YAMAMOTOV. A. M. SLEIFFFERT. SASAKI: "Analytical OSNR Formulation Validate with 100G-WDM experiments and Optical Subsea Fiber Proposal", PROCEEDINGS OF OFC, 2013
S. ZHANGP. Y. KAMJ. CHENC. YU: "Bit-error rate performance of coherent optical M-ary PSK/QAM using decision-aided maximum likelihood phase estimation", OPTICS EXPRESS, vol. 18, no. 12, 2010, pages 12088 - 12103
T. KODAMAT. MIYAZAKIM. HANAWA: "Seamless PAM-4 to QPSK Modulation Format Conversion at Gateway for Short-reach and Long-haul Integrated Networks", ECOC, 2018, pages 1 - 3, XP033447792, DOI: 10.1109/ECOC.2018.8535511
K. KIKUCHI: "Characterization of semiconductor-laser phase noise and estimation of bit-error rate performance with low-speed offline digital coherent receivers", OPTICS EXPRESS, vol. 20, no. 5, 2012, pages 5291 - 5302
B. J. PUTTNAMG. RADEMACHERR. S. LUISJ. SAKAGUCHIY. AWAJIN. WADA: "Inter-Core Skew Measurements in Temperature Controlled Multi-Core Fiber", PROCEEDINGS OF OFC, 2018
See also references of EP 4020849A4
Attorney, Agent or Firm:
OKADA, Kenji et al. (JP)
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