| Presentation | 2000/1/18 Variable attenuation slope compensator(VASC)using silica-based planar lightwave circuit technology for active gain slope control in EDFAs Chisai Hirose, Haruo Nakaji, Motoki Kakui, Hitoshi Hatayama, Kenji Koyama, Nobuhiro Akasaka, Masayuki Nishimura, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We propose a novel planar lightwave circuit (PLC)-based device called variable attenuation slope compensator(VASC)specifically designed for use inside the EDFA. The VASC is an electrically controllable optical attenuator whose attenuation slope(wavelength dependence of attenuation)is variable while the average attenuation within the operational wavelength range is unchanged. The VASC consists of two asymmetrical Mach-Zehnder interferometers. The attenuation slope between 1535nm and 1565nm varies from -5.5dB to +6.7dB. The EDFAs employing the VASC have exhibited a dynamic range as large as 20dB and dynamic gain tilt as small as 0.6dB. The noise figure of the EDFA employing the VASC is about 4dB for an iuput level of -28dBm/ch, and it increases by about 9dB whiles the input level is increased by 20dB. This deterioration of the noise figure in the EDFAs employing the VASC is smaller than that observed in the EDFA employing a variable optical attenuator. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | WDM / EDFA / ALC / VASC / DGT |
| Paper # | PS99-70, OPE99-118, LQE99-109 |
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| Conference Information | |
| Committee | LQE |
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| Conference Date | 2000/1/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Lasers and Quantum Electronics (LQE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Variable attenuation slope compensator(VASC)using silica-based planar lightwave circuit technology for active gain slope control in EDFAs |
| Sub Title (in English) | |
| Keyword(1) | WDM |
| Keyword(2) | EDFA |
| Keyword(3) | ALC |
| Keyword(4) | VASC |
| Keyword(5) | DGT |
| 1st Author's Name | Chisai Hirose |
| 1st Author's Affiliation | Yokohama Research Laboratories, Sumitomo Electric Industries, Ltd.() |
| 2nd Author's Name | Haruo Nakaji |
| 2nd Author's Affiliation | Yokohama Research Labratories, Sumitomo Electric Industries, Ltd. |
| 3rd Author's Name | Motoki Kakui |
| 3rd Author's Affiliation | Yokohama Research Labratories, Sumitomo Electric Industries, Ltd. |
| 4th Author's Name | Hitoshi Hatayama |
| 4th Author's Affiliation | Yokohama Research Labratories, Sumitomo Electric Industries, Ltd. |
| 5th Author's Name | Kenji Koyama |
| 5th Author's Affiliation | Yokohama Research Labratories, Sumitomo Electric Industries, Ltd. |
| 6th Author's Name | Nobuhiro Akasaka |
| 6th Author's Affiliation | Yokohama Research Labratories, Sumitomo Electric Industries, Ltd. |
| 7th Author's Name | Masayuki Nishimura |
| 7th Author's Affiliation | Yokohama Research Labratories, Sumitomo Electric Industries, Ltd. |
| Date | 2000/1/18 |
| Paper # | PS99-70, OPE99-118, LQE99-109 |
| Volume (vol) | vol.99 |
| Number (no) | 545 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |