The Review of Laser Engineering
Online ISSN : 1349-6603
Print ISSN : 0387-0200
ISSN-L : 0387-0200
Characteristics of S-band (1490-1512 nm) Discrete Raman Amplifier Using High Raman Gain Fiber
Yuki TANIGUCHIYoshihiro EMORIAtsushi OGURIRyuichi SUGIZAKIMisao SAKANOTakeshi YAGI
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2007 Volume 35 Issue 1 Pages 43-46

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Abstract
We have developed a high Raman gain fiber that is applicable to Raman amplification over a wide wavelength region. Since this fiber has sufficiently low OH-loss, favorable amplification characteristics for S-band are expected. Using 2 km of this fiber, an S-band discrete Raman amplifier of single stage configuration is fabricated with three laser diodes, and gain characteristics are investigated for 30 S-band WDM signals (1490-1512nm) with 100-GHz spacing. Amplifier input/output of-9.5dBm/+4.5dBm and-20dBm/-3.5dBm×30ch with 1-dB flatness without any gain-flattening filters are achieved by total 680mW pump power.
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© by The Laser Society of Japan
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