Presentation 2000/11/9
Variable attenuation slope compensator(VASC)using silica-based planar lightwave circuit technology for active gain slope control in EDFAs
Chisai Hirose, Haruo Nakaji, Kenji Koyama, Morihiro Seki, Hitoshi Hatayama, Takashi Sasaki, Motoki Kakui, Tetsuya Hattori, Masahide Saito, Shigeru Semura, Masayuki Nishimura,
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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 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 input 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 EDFAs employing a variable optical attenuator.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) WDM / EDFA / ALC / VASC / DGT
Paper # OCS2000-88 : OPE2000-105 : LQE2000-97
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Conference Information
Committee LQE
Conference Date 2000/11/9(1days)
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Paper Information
Registration To Lasers and Quantum Electronics (LQE)
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 Laboratories, Sumitomo Electric Industries, Ltd.
3rd Author's Name Kenji Koyama
3rd Author's Affiliation Yokohama Research Laboratories, Sumitomo Electric Industries, Ltd.
4th Author's Name Morihiro Seki
4th Author's Affiliation Yokohama Research Laboratories, Sumitomo Electric Industries, Ltd.
5th Author's Name Hitoshi Hatayama
5th Author's Affiliation Yokohama Research Laboratories, Sumitomo Electric Industries, Ltd.
6th Author's Name Takashi Sasaki
6th Author's Affiliation Yokohama Research Laboratories, Sumitomo Electric Industries, Ltd.
7th Author's Name Motoki Kakui
7th Author's Affiliation Yokohama Research Laboratories, Sumitomo Electric Industries, Ltd.
8th Author's Name Tetsuya Hattori
8th Author's Affiliation Yokohama Research Laboratories, Sumitomo Electric Industries, Ltd.
9th Author's Name Masahide Saito
9th Author's Affiliation Yokohama Research Laboratories, Sumitomo Electric Industries, Ltd.
10th Author's Name Shigeru Semura
10th Author's Affiliation Yokohama Research Laboratories, Sumitomo Electric Industries, Ltd.
11th Author's Name Masayuki Nishimura
11th Author's Affiliation Yokohama Research Laboratories, Sumitomo Electric Industries, Ltd.
Date 2000/11/9
Paper # OCS2000-88 : OPE2000-105 : LQE2000-97
Volume (vol) vol.100
Number (no) 431
Page pp.pp.-
#Pages 6
Date of Issue