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학술지 Wideband Hybrid Fiber Amplifier Using Er-Doped Fiber and Raman Medium
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저자
서홍석, 안준태, 박봉제, 정운진
발행일
200712
출처
ETRI Journal, v.29 no.6, pp.779-784
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.07.0107.0044
협약과제
07ZB1200, 정보통신미래신기술연구사업, 정태형
초록
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.
KSP 제안 키워드
5 nm, Dispersion compensating fiber(DCFs), Er-doped fiber, Hybrid fiber amplifier, Hybrid structure, Optical Gain, Raman scattering(SERS), Stimulated Raman Scattering, Two-tone, Wideband Fiber, amplified spontaneous emission