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학술지 An All-Optically Gain-Controlled Two-Stage Amplifier Using Two Independent Feedback Loops
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저자
최보훈, 김창봉, 고제수
발행일
200709
출처
IEEE Photonics Technology Letters, v.19 no.18, pp.1353-1355
ISSN
1041-1135
출판사
IEEE
DOI
https://dx.doi.org/10.1109/LPT.2007.902954
협약과제
07MT2400, OTH기반 40G급 다중서비스 전송 기술개발, 고제수
초록
We propose and demonstrate the scheme to combine a two-staged amplifier with a fixed gain flattening filter and two parallel optical feedback loops. This amplifier all-optically controls constant signal gain and gain level through all C-band with a dynamic input power range -1 dBm while input signals are dynamically changed between one channel and 40 wavelength- division- multiplexing channels. The transient effects of each channel and their wavelength dependency are investigated. It is shown that the amplifier can be used in real field applications through transmission experiments, in which the amplifier performance is kept unchanged under wide dynamic traffic variance. © 2007 IEEE.
키워드
Erbium-doped fiber (EDF), Gin control, Optical fiber communications, Wavelength-division multiplexing (WDM)
KSP 제안 키워드
C-band, Dynamic input, Erbium-doped fiber, Feedback Loop, Gain flattening filter, Gin control, Input power, Optical fiber communications, Power range, Signal gain, Transient effects