Presentation 2000/7/21
Depolarized diode pump unit designed for C-band flat-gain Raman amplifiers to control EDFA gain profile
Shun-ichi Matsushita, Yoshihiro Emori, Shu Namiki,
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Abstract(in English) We demonstrate depolarization of pump LD to diminish PDG in Raman amplifiers in order to decrease the number of LDs. By optimizing pump wavelengths and using depolarized LD, we realize cost-effective pumping unit comprising only two LDs, to obtain a sufficiently flat Raman gain over the conventional EDFA gain band (C-band:1530-1560nm). As an example of the application, EDFA gain tilt is controlled by means of Raman gain in DCF instead of a variable optical attenuator in an in-line amplifier, so that the gain flatness and output power can be simultaneously maintained constant against input power variation.
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Keyword(in English) Stimulated Raman Scattering / Depolarization / Optical amplifier / EDFA
Paper # OCS2000-39,PS2000-23,OFT2000-35
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Committee OCS
Conference Date 2000/7/21(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Depolarized diode pump unit designed for C-band flat-gain Raman amplifiers to control EDFA gain profile
Sub Title (in English)
Keyword(1) Stimulated Raman Scattering
Keyword(2) Depolarization
Keyword(3) Optical amplifier
Keyword(4) EDFA
1st Author's Name Shun-ichi Matsushita
1st Author's Affiliation FITEL Photonics Laboratory, Furukawa Electric Co., LTD.()
2nd Author's Name Yoshihiro Emori
2nd Author's Affiliation FITEL Photonics Laboratory, Furukawa Electric Co., LTD.
3rd Author's Name Shu Namiki
3rd Author's Affiliation FITEL Photonics Laboratory, Furukawa Electric Co., LTD.
Date 2000/7/21
Paper # OCS2000-39,PS2000-23,OFT2000-35
Volume (vol) vol.100
Number (no) 230
Page pp.pp.-
#Pages 6
Date of Issue