| Presentation | 2004-08-26 Suppression of the cross-gain modulation in online OTDR monitoring for remotely pumped EDF/distributed Raman hybrid amplifier systems Hiroto KAWAKAMI, Hiroji MADUDA, Kenji Sato, Yutaka MIYAMOTO, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Suppression of signal degradation in Remotely-Pumped EDF/Distributed Raman Hybrid Amplifier Scheme with Optical Time Domain Reflectometer (OTDR) is reported. Signal degradation due to cross gain modulation (XGM) caused by an OTDR pulse in distributed Raman amplifier (DRA) section and remotely-pumped EDF unit is analyzed theoretically. The required conditions for suppression of XGM in DRA section are derived. We propose the directional bypass configuration to realize OTDR measurement without XGM in EDF unit. Transmission experiments using the Remotely-Pumped EDF/Distributed Raman Hybrid Amplifier are demonstrated without transmission impairement induced by OTDR. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | OTDR / Remote pumping / Distributed Raman amplifier Windows / Cross gain modulation |
| Paper # | OCS2004-64,OFT2004-27 |
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| Conference Information | |
| Committee | OCS |
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| Conference Date | 2004/8/19(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) | Suppression of the cross-gain modulation in online OTDR monitoring for remotely pumped EDF/distributed Raman hybrid amplifier systems |
| Sub Title (in English) | |
| Keyword(1) | OTDR |
| Keyword(2) | Remote pumping |
| Keyword(3) | Distributed Raman amplifier Windows |
| Keyword(4) | Cross gain modulation |
| 1st Author's Name | Hiroto KAWAKAMI |
| 1st Author's Affiliation | NTT Network Innovation Laboratories, NTT Corporation() |
| 2nd Author's Name | Hiroji MADUDA |
| 2nd Author's Affiliation | NTT Network Innovation Laboratories, NTT Corporation |
| 3rd Author's Name | Kenji Sato |
| 3rd Author's Affiliation | NTT Network Innovation Laboratories, NTT Corporation |
| 4th Author's Name | Yutaka MIYAMOTO |
| 4th Author's Affiliation | NTT Network Innovation Laboratories, NTT Corporation |
| Date | 2004-08-26 |
| Paper # | OCS2004-64,OFT2004-27 |
| Volume (vol) | vol.104 |
| Number (no) | 259 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |