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| Presentation | 2008-06-12 14:15 Experimental results of 622M-2.5Gbps Coherent OCDM Systems with Noise Reduction Circuits Yasuhiro Kotani, Tomoaki Nakamura, Renichi Moritomo, Saeko Oshiba, Masahiro Akiyama (KIT), Kensuke Sasaki (OKI)  PN2008-5 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (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) |
| (in English) | Optical Code Division Multiplexing / OCDM / Optical Time Gating / Multiple Access Interference / Optical Beat Interference / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 108, no. 84, PN2008-5, pp. 25-30, June 2008. | |
| Paper # | PN2008-5 | |
| Date of Issue | 2008-06-05 (PN) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | PN2008-5 |
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| Conference Information | |
| Committee | PN CS OCS |
| Conference Date | 2008-06-12 - 2008-06-13 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Chitose Institute of Science and Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Photonic network, network control, optical switching, wavelength conversion, optical quantum communications, GMPLS, etc. |
| Paper Information | |
| Registration To | PN |
| Conference Code | 2008-06-PN-CS-OCS |
| Language | Japanese |
| 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 |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Yasuhiro Kotani |
| 1st Author's Affiliation | Kyoto Institute of Technology (KIT) |
| 2nd Author's Name | Tomoaki Nakamura |
| 2nd Author's Affiliation | Kyoto Institute of Technology (KIT) |
| 3rd Author's Name | Renichi Moritomo |
| 3rd Author's Affiliation | Kyoto Institute of Technology (KIT) |
| 4th Author's Name | Saeko Oshiba |
| 4th Author's Affiliation | Kyoto Institute of Technology (KIT) |
| 5th Author's Name | Masahiro Akiyama |
| 5th Author's Affiliation | Kyoto Institute of Technology (KIT) |
| 6th Author's Name | Kensuke Sasaki |
| 6th Author's Affiliation | Oki Electric Industry (OKI) |
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| Speaker | Author-1 |
| Date Time | 2008-06-12 14:15:00 |
| Presentation Time | 25 minutes |
| Registration for | PN |
| Paper # | PN2008-5 |
| Volume (vol) | vol.108 |
| Number (no) | no.84 |
| Page | pp.25-30 |
| #Pages | 6 |
| Date of Issue | 2008-06-05 (PN) |
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