| Presentation | 2019-08-22 [Invited Talk] Ultra boradband digital coherent technologies for 1Tb/s channel rate and beyond Takayuki Kobayashi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Research and development of optical transmission systems with over-1-Tb/s capacity per wavelength are underway to efficiently and economically accommodate client signals such as high-speed Ethernet in optical transport networks. In 100G class optical transmission systems, digital coherent technology enabled equalization and compensation of various signal degradation factors by digital signal processing. Also, Etc. it improved significantly transmission performance of optical signals such as spectral efficiency improvement and transmission distance extension. However, an optical signal with 1-Tb/s capacity and beyond has the baud rate of > 100 Gbaud and requires higher-order modulation formats with > 32 levels. In such specification, a utilization of both analog and digital technologies is a promising approach because there are various challenges not only in optical and electrical devices such as DACs (Digital-to-Analog Converter), ADCs (Analog-to-Digital Converter), and optical modulators but also in digital signal processing. In this paper, we review the challenges of optical transceivers with over 1-Tb/s capacity and introduce key technologies for realizing them |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | digital coherent technology / transceiver with over 1-Tb/s capacity / fusion of analog and digital technologies |
| Paper # | R2019-23,EMD2019-21,CPM2019-22,OPE2019-50,LQE2019-28 |
| Date of Issue | 2019-08-15 (R, EMD, CPM, OPE, LQE) |
| Conference Information | |
| Committee | LQE / OPE / CPM / EMD / R |
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| Conference Date | 2019/8/22(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Hiroshi Aruga(Mitsubishi Electric) / Hiroshi Takahashi(Sophia Univ.) / Mayumi Takeyama(Kitami Inst. of Tech.) / Shinichi Wada(TMC System) / Akira Asato(Fujitsu) |
| Vice Chair | Hiroshi Yasaka(Tohoku Univ.) / Goji Nakagawa(Fujitsu Labs.) / Yuichi Nakamura(Toyohashi Univ. of Tech.) / Yoshiki Kayano(Univ. of Electro-Comm.) / Tadashi Dohi(Hiroshima Univ.) |
| Secretary | Hiroshi Yasaka(Furukawa Electric Industries) / Goji Nakagawa(Osaka Univ.) / Yuichi Nakamura(Tokyo Inst. of Tech.) / Yoshiki Kayano(NTT) / Tadashi Dohi(Hirosaki Univ.) |
| Assistant | Fumito Nakajima(NTT) / Kenta Miura(Gunma Univ.) / Yuki Wakayama(Hitachi) / Yasuo Kimura(Tokyo Univ. of Tech.) / Tomoaki Terasako(Ehime Univ.) / Fumihiko Hirose(Yamagata Univ.) / Yuichi Hayashi(ＮＡＩＳＴ) / Hiroyuki Okamura(Hiroshima Univ.) / Shinji Yokogawa(Univ. of Electro-Comm.) |
| Paper Information | |
| Registration To | Technical Committee on Lasers and Quantum Electronics / Technical Committee on OptoElectronics / Technical Committee on Component Parts and Materials / Technical Committee on Electromechanical Devices / Technical Committee on Reliability |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Invited Talk] Ultra boradband digital coherent technologies for 1Tb/s channel rate and beyond |
| Sub Title (in English) | |
| Keyword(1) | digital coherent technology |
| Keyword(2) | transceiver with over 1-Tb/s capacity |
| Keyword(3) | fusion of analog and digital technologies |
| 1st Author's Name | Takayuki Kobayashi |
| 1st Author's Affiliation | NTT(NTT) |
| Date | 2019-08-22 |
| Paper # | R2019-23,EMD2019-21,CPM2019-22,OPE2019-50,LQE2019-28 |
| Volume (vol) | vol.119 |
| Number (no) | R-169,EMD-170,CPM-171,OPE-172,LQE-173 |
| Page | pp.pp.21-24(R), pp.21-24(EMD), pp.21-24(CPM), pp.21-24(OPE), pp.21-24(LQE), |
| #Pages | 4 |
| Date of Issue | 2019-08-15 (R, EMD, CPM, OPE, LQE) |