Presentation 2001/11/14
High-Speed Automatically Gain Controlled EDFAs
Haruo Nakaji, Masayuki Shigematsu, Yoshiharu Nakai, Masayuki Nishimura,
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Abstract(in English) In order to develop superior high-speed automatically gain controlled (AGC)EDFA, we study gain dynamics of erbium doped fiber amplifiers(EDFA)when the input channel count is changed.It has been found that the dynamic gain excursions of the surviving channels cannot be suppressed even if the pump power is adjusted at the same time as the input channel count change in the EDFA pumped at 974nm.Based on this result, we propose the high-speed AGC-EDFA employing an optical delay line to reduce the dynamic gain excursion. By employing the optical delay line in the high-speed AGC-EDFA pumped at 974nm, the maximum dynamic gain excursions have successfully been reduced. In five cascaded EDFA chains, the maximum dynamic gain excursion of about 1dB is realized.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) WDM / ring network / EDFA / high-speed automatic gain control / transient response
Paper # OFT2001-56
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Conference Information
Committee OFT
Conference Date 2001/11/14(1days)
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Paper Information
Registration To Optical Fiber Technology (OFT)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) High-Speed Automatically Gain Controlled EDFAs
Sub Title (in English)
Keyword(1) WDM
Keyword(2) ring network
Keyword(3) EDFA
Keyword(4) high-speed automatic gain control
Keyword(5) transient response
1st Author's Name Haruo Nakaji
1st Author's Affiliation Yokohama R&D Laboratories, Sumitomo Electric Industries, Ltd.()
2nd Author's Name Masayuki Shigematsu
2nd Author's Affiliation Yokohama R&D Laboratories, Sumitomo Electric Industries, Ltd.
3rd Author's Name Yoshiharu Nakai
3rd Author's Affiliation Photo-Transmission R&D Laboratories, Sumitomo Electric Industries, Ltd.
4th Author's Name Masayuki Nishimura
4th Author's Affiliation Yokohama R&D Laboratories, Sumitomo Electric Industries, Ltd.
Date 2001/11/14
Paper # OFT2001-56
Volume (vol) vol.101
Number (no) 453
Page pp.pp.-
#Pages 6
Date of Issue