| Presentation | 2018-01-30 Feedback-control-free Adaptive Equalization Using Dual-polarization Pilot Tones for Optical Coherent Reception Tomoki Nishiyama, Shuai Yuan, Koji Igarashi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We propose feedback-control-free adaptive equalization for optical coherent receivers. The polarization rotation and the carrier phase fluctuation of the received signals are simultaneously compensated for by using dual-polarization pilot tones. Compared with the conventional feedback-control-based scheme, higher stable operation is achieved in our proposed scheme even for high-order quadrature amplitude modulation (QAM) optical signals impaired with large additive white Gaussian noise, although there are relatively large errors on compensation for the polarization rotation and the carrier phase fluctuation. With our proposed scheme, we numerically evaluate bit-error rate (BER) characteristics of dual-polarization 64QAM optical signals when an optical local oscillator with a spectral linewidth of 100kHz is used. The calculated results suggest that penalty on the signal-to-noise ratio (SNR) required for BER of 1.5×10^{-2} could be suppressed to be smaller than 3dB in the low SNR region, in which the stable operation of the conventional feedback-control-based scheme cannot be achieved. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | optical coherent detection / adaptive equalizer / digital signal processing |
| Paper # | OCS2017-73 |
| Date of Issue | 2018-01-22 (OCS) |
| Conference Information | |
| Committee | CS / OCS |
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| Conference Date | 2018/1/29(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Ehime University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Core and metro system, Submarine telecommunications system, Optical access system and next generation PON, Ethernet, Optical Transport Network (OTN), Transmission monitoring and control, Design and tool for optical transmission system, Co-operation between optical and mobile, etc. |
| Chair | Tetsuya Yokotani(Kanazawa Inst. of Tech.) / Itsuro Morita(KDDI Research) |
| Vice Chair | Hidenori Nakazato(Waseda Univ.) |
| Secretary | Hidenori Nakazato(Kyushu Univ.) / (NTT) |
| Assistant | Kenji Kanai(Waseda Univ.) / Kazutaka Hara(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Communication Systems / Technical Committee on Optical Communication Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Feedback-control-free Adaptive Equalization Using Dual-polarization Pilot Tones for Optical Coherent Reception |
| Sub Title (in English) | |
| Keyword(1) | optical coherent detection |
| Keyword(2) | adaptive equalizer |
| Keyword(3) | digital signal processing |
| 1st Author's Name | Tomoki Nishiyama |
| 1st Author's Affiliation | Osaka University(Osaka Univ.) |
| 2nd Author's Name | Shuai Yuan |
| 2nd Author's Affiliation | Osaka University(Osaka Univ.) |
| 3rd Author's Name | Koji Igarashi |
| 3rd Author's Affiliation | Osaka University(Osaka Univ.) |
| Date | 2018-01-30 |
| Paper # | OCS2017-73 |
| Volume (vol) | vol.117 |
| Number (no) | OCS-423 |
| Page | pp.pp.37-41(OCS), |
| #Pages | 5 |
| Date of Issue | 2018-01-22 (OCS) |