| Presentation | 2018-05-11 [Special Invited Talk] Investigation of reduced skew of 106-Gb/s PAM4 waveform with optical orthogonal polarization multiplexing by utilizing 1.3-um directly modulated lasers Kouji Nakahara, Riu Hirai, Takeshi Kitatani, Nobuhiko Kikuchi, Takayoshi Fukui, Kaoru Okamoto, Yasushi Sakuma, Kohichi R. Tamura, Shigehisa Tanaka, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | One of technical issues of PAM-4 modulation by utilizing directly modulated lasers is distorted into a shew shape eye-diagram. To reduce this shew diagram, we proposed that orthogonal polarization-multiplexing of two NRZ signals with optical power ratio of 2:1 in directly modulated lasers generates skewless PAM-4 waveforms. This optical signal can be received as the PAM4 signal by a standard direct detection receiver. We achieved skewless 106-Gb/s/lane PAM-4 signals with multiplexing mutually orthogonal polarized 53-Gb/s NRZ signals emitted by directly modulated lasers. In addition, transmission over a 10-km SM fiber was demonstrated at 106-Gb/s PAM4 without the non-linearity compensation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | directly modulated laser / NRZ / PAM4 / skew |
| Paper # | OCS2018-9,OPE2018-9,LQE2018-9 |
| Date of Issue | 2018-05-04 (OCS, OPE, LQE) |
| Conference Information | |
| Committee | OPE / OCS / LQE |
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| Conference Date | 2018/5/11(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kikai-Shinko-Kaikan Bldg (Tokyo) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Kazutoshi Kato(Kyushu Univ.) / Itsuro Morita(KDDI Research) / Tsuyoshi Yamamoto(Fujitsu Labs.) |
| Vice Chair | Kouki Sato(Furukawa Electric Industries) / / Kiichi Hamamoto(Kyusyu Univ.) |
| Secretary | Kouki Sato(NTT) / (Kanagawa Inst. of Tech.) / Kiichi Hamamoto(Sumitomo Electric Industries) |
| Assistant | Takuo Tanemura(Univ. of Tokyo) / Naokatsu Yamamoto(NICT) / / Yasumasa Kawakita(Furukawa Electric Industries) / Naoki Fujiwara(NTT) |
| Paper Information | |
| Registration To | Technical Committee on OptoElectronics / Technical Committee on Optical Communication Systems / Technical Committee on Lasers and Quantum Electronics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Special Invited Talk] Investigation of reduced skew of 106-Gb/s PAM4 waveform with optical orthogonal polarization multiplexing by utilizing 1.3-um directly modulated lasers |
| Sub Title (in English) | |
| Keyword(1) | directly modulated laser |
| Keyword(2) | NRZ |
| Keyword(3) | PAM4 |
| Keyword(4) | skew |
| 1st Author's Name | Kouji Nakahara |
| 1st Author's Affiliation | Oclaro, Japan(Oclaro) |
| 2nd Author's Name | Riu Hirai |
| 2nd Author's Affiliation | Hitachi Ltd.,(Hitachi) |
| 3rd Author's Name | Takeshi Kitatani |
| 3rd Author's Affiliation | Oclaro, Japan(Oclaro) |
| 4th Author's Name | Nobuhiko Kikuchi |
| 4th Author's Affiliation | Hitachi Ltd.,(Hitachi) |
| 5th Author's Name | Takayoshi Fukui |
| 5th Author's Affiliation | Oclaro, Japan(Oclaro) |
| 6th Author's Name | Kaoru Okamoto |
| 6th Author's Affiliation | Oclaro, Japan(Oclaro) |
| 7th Author's Name | Yasushi Sakuma |
| 7th Author's Affiliation | Oclaro, Japan(Oclaro) |
| 8th Author's Name | Kohichi R. Tamura |
| 8th Author's Affiliation | Oclaro, Japan(Oclaro) |
| 9th Author's Name | Shigehisa Tanaka |
| 9th Author's Affiliation | Oclaro, Japan(Oclaro) |
| Date | 2018-05-11 |
| Paper # | OCS2018-9,OPE2018-9,LQE2018-9 |
| Volume (vol) | vol.118 |
| Number (no) | OCS-23,OPE-24,LQE-25 |
| Page | pp.pp.31-34(OCS), pp.31-34(OPE), pp.31-34(LQE), |
| #Pages | 4 |
| Date of Issue | 2018-05-04 (OCS, OPE, LQE) |