| Presentation | 2008-08-28 Ultrafast Operation of Digital Coherent Receivers Using Their Optical Time-Division Demultiplexing Function Chao ZHANG, Yojiro MORI, Koji IGARASHI, Kazuhiro KATOH, Kazuro KIKUCHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The digital coherent receiver realizes phase synchronization in the digital domain and can demodulate any multilevel coded optical signals. However, the maximum symbol rate processed by such receiver is limited by the speed of electric ADCs and DSP. Although real-time operation at 10 Gsymbol/s using a digital coherent receiver has recently been demonstrated, it is still difficult to increase the symbol rate beyond 40 Gsymbol/s. In order to cope with this difficulty, we propose a novel scheme, which employs an LO pulsed at the subharmonic frequency of the symbol rate, enabling optical time-division demultiplexing of the signal at the digital coherent receiver. We demonstrate that the new type of digital coherent receiver operating at 10 Gsymbol/s can demodulate the aggregate symbol rate of 160 Gsymbol/s. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Digital signal processing / optical fiber communication / optical time-division demultiplexing / phase-shift keying |
| Paper # | OCS2008-40 |
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| Committee | OCS |
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| Conference Date | 2008/8/21(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Optical Communication Systems (OCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Ultrafast Operation of Digital Coherent Receivers Using Their Optical Time-Division Demultiplexing Function |
| Sub Title (in English) | |
| Keyword(1) | Digital signal processing |
| Keyword(2) | optical fiber communication |
| Keyword(3) | optical time-division demultiplexing |
| Keyword(4) | phase-shift keying |
| 1st Author's Name | Chao ZHANG |
| 1st Author's Affiliation | Department of Electronic Engineering, The University of Tokyo() |
| 2nd Author's Name | Yojiro MORI |
| 2nd Author's Affiliation | Department of Electronic Engineering, The University of Tokyo |
| 3rd Author's Name | Koji IGARASHI |
| 3rd Author's Affiliation | Department of Electronic Engineering, The University of Tokyo |
| 4th Author's Name | Kazuhiro KATOH |
| 4th Author's Affiliation | Department of Electronic Engineering, The University of Tokyo |
| 5th Author's Name | Kazuro KIKUCHI |
| 5th Author's Affiliation | Department of Electronic Engineering, The University of Tokyo |
| Date | 2008-08-28 |
| Paper # | OCS2008-40 |
| Volume (vol) | vol.108 |
| Number (no) | 189 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |