상세정보
학술지
Gain optimization of germanosilicate fiber Raman amplifier and its applications in the compensation of Raman-induced crosstalk among wavelength division multiplexing channels
- 발행일
- 200109
- 출처
- IEEE Journal of Quantum Electronics, v.37 no.9, pp.1110-1116
- ISSN
- 0018-9197
- 출판사
- IEEE
- 협약과제
- 01MB1700, 1.4㎛ 파장대 광증폭기용 광섬유 소재 및 소자 개발, 최용규
- 초록
- Spectral characteristics of stimulated Raman scattering (SRS) process were theoretically investigated for step-index silica optical fibers with various GeO2 concentrations. Optimal-fiber lengths and germanium concentration, where the first Stokes power reaches maximum, were calculated at various pump power levels for application in Raman amplifiers. Based on this analysis, we proposed and experimentally demonstrated a new channel-equalizing technique to simultaneously compensate Raman-induced crosstalk and amplify wavelength-division-multiplexing (WDM) signals using a discrete Raman amplifier in the 1.5-μm range. As a further application of SRS in germanosilicate glass fibers, we introduce an all-optical variable attenuator for channel equalization that could be used in dynamic optical power tilt control in WDM systems.
- KSP 제안 키워드
- Fiber Raman amplifier, First Stokes(S1), Gain optimization, Germanosilicate glass, Optical fiber, Optical power, Power Levels, Pump power, Raman scattering(SERS), Spectral characteristics, Stimulated Raman Scattering