| Presentation | 2008-06-12 Experimental results of 622M-2.5Gbps Coherent OCDM Systems with Noise Reduction Circuits Yasuhiro KOTANI, Tomoaki Nakmura, Renichi Moritomo, Saeko Oshiba, Masahiro Akiyama, Kensuke Sasaki, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we study to reduce the interference noises in the OCDM system using the Fiber-Bragg-Grating (FBG) phase en/decoders. At first, the noise elimination by an optical time-gating at a receiver side is experimentally demonstrated. Then, an electro-absorption modulator is employed for the optical time-gating, and driven by a 34ps electric-gate pulse generated from a rectangular clock pulse. As a result, 6 OCDM system channels is achieved with increasing 3 in 622Mbit/s/ch. Next, the noise reduction and the nonlinear processing using analog electronic circuits consist of a variable-gain amplifier, a peak-detector and a threshold-amplifier are experimentally investigated. As a result, the noise reduction system enables a 622Mbit/s/ch-OCDM operation at bit error rate<1×10^<-9> with up to 7 OCDM system channels. Furthermore, the data-rate per the channel is set to 1.244Gbit/s or 2.488Gbit/s, and the multi-rate characteristic is investigated. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Optical Code Division Multiplexing / OCDM / Optical Time Gating / Multiple Access Interference / Optical Beat Interference |
| Paper # | PN2008-5 |
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| Committee | PN |
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| Conference Date | 2008/6/5(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Photonic Network (PN) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Experimental results of 622M-2.5Gbps Coherent OCDM Systems with Noise Reduction Circuits |
| Sub Title (in English) | |
| Keyword(1) | Optical Code Division Multiplexing |
| Keyword(2) | OCDM |
| Keyword(3) | Optical Time Gating |
| Keyword(4) | Multiple Access Interference |
| Keyword(5) | Optical Beat Interference |
| 1st Author's Name | Yasuhiro KOTANI |
| 1st Author's Affiliation | Department of Electronics, Graduate School of Science and Technology, Kyoto Institute of Technology() |
| 2nd Author's Name | Tomoaki Nakmura |
| 2nd Author's Affiliation | Department of Electronics, Graduate School of Science and Technology, Kyoto Institute of Technology |
| 3rd Author's Name | Renichi Moritomo |
| 3rd Author's Affiliation | Department of Electronics, Graduate School of Science and Technology, Kyoto Institute of Technology |
| 4th Author's Name | Saeko Oshiba |
| 4th Author's Affiliation | Department of Electronics, Graduate School of Science and Technology, Kyoto Institute of Technology |
| 5th Author's Name | Masahiro Akiyama |
| 5th Author's Affiliation | Department of Electronics, Graduate School of Science and Technology, Kyoto Institute of Technology |
| 6th Author's Name | Kensuke Sasaki |
| 6th Author's Affiliation | Corporate Research & Development Center, Oki Electric Industry Co., Ltd. |
| Date | 2008-06-12 |
| Paper # | PN2008-5 |
| Volume (vol) | vol.108 |
| Number (no) | 84 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |