Wideband Hybrid Fiber Amplifier Using Er-Doped Fiber and Raman Medium

In this paper, we report the experimental results of a hybrid wideband fiber amplifier. The amplifying medium is a concatenated hybrid fiber consisting of Er-doped fiber (EDF) and dispersion compensating fiber (DCF). The gain mechanisms are based on stimulated emission in the EDF and stimulated Rama...

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Bibliographic Details
Published inETRI journal Vol. 29; no. 6; pp. 779 - 784
Main Authors Seo, Hong-Seok, Ahn, Joon-Tae, Park, Bong-Je, Chung, Woon-Jin
Format Journal Article
LanguageKorean
Published 한국전자통신연구원 01.12.2007
ETRI
Subjects
전자/정보통신공학
WDM
EDF
DCF
L band
Er
fiber amplifier
S band
Raman amplifier
wideband
SRS
C band
hybrid type
Ge
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Summary:In this paper, we report the experimental results of a hybrid wideband fiber amplifier. The amplifying medium is a concatenated hybrid fiber consisting of Er-doped fiber (EDF) and dispersion compensating fiber (DCF). The gain mechanisms are based on stimulated emission in the EDF and stimulated Raman scattering (SRS) in the DCF. Since we simultaneously use optical amplification by the two processes, the gain bandwidth is easily expanded over 105 nm by a two-tone pumping scheme. Using an experimental setup constructed with a hybrid structure of EDF-DCF-EDF, we analyzed the spectral behavior of amplified spontaneous emission for pumping powers. We achieved an optical gain of over 20 dB in the wavelength range from 1,500 to 1,600 nm under optimized pumping conditions to make the spectral gain shape flat.
Bibliography:KISTI1.1003/JNL.JAKO200771242946749
G704-001110.2007.29.6.019
ISSN:1225-6463
2233-7326