WDM/SCM RoF 시스템에서 광 주입 기술을 적용한 피드포워드 아날로그 광송신기의 파장차이에 따른 상호변조 왜곡성분의 특성 분석

Analysis of Intermodulation Distortion for Wavelength-Dependence Transmission Experiment of a Feedforward Analog Optical Transmitter with External Light Injection Method in WDM/SCM RoF Systems

초록

We have experimentally demonstrated the transmission performance of a feedforward optical transmitter using an external light injection technique. The feedforward compensation method shows 31 dB intermodulation distortion suppression and 2.2 dB noise reduction. A high side-mode suppression ratio exceeding 35 dB of the wavelength of the locked Fabry-Perot laser diode was obtained over 12 nm ranges. The suppression characteristics of the intermodulation distortion for various wavelength differences and transmission lengths were measured and analyzed as the evaluation criteria for the system performance in WDM/SCM based radio-over-fiber systems.

키워드

피드포워드 보상기법; 아날로그 광송신기; 3차 상호변조 왜곡성분; 광 주입 기법
제목
WDM/SCM RoF 시스템에서 광 주입 기술을 적용한 피드포워드 아날로그 광송신기의 파장차이에 따른 상호변조 왜곡성분의 특성 분석
제목 (타언어)
Analysis of Intermodulation Distortion for Wavelength-Dependence Transmission Experiment of a Feedforward Analog Optical Transmitter with External Light Injection Method in WDM/SCM RoF Systems
저자
문연태; 최영완
발행일
2008
저널명
전자공학회논문지 - SD
권
45
호
5
페이지
33 ~ 39