Title :
Optical frequency modulation links: Theory and experiments
Author :
Cai, Bo ; Seeds, Alwyn J.
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. Coll. London, UK
fDate :
4/1/1997 12:00:00 AM
Abstract :
In this paper, the first theoretical analysis and experimental realization of an optical frequency modulation coherent detection (FMCD) link working at microwave frequencies is reported. Advantages over conventional optical intensity modulation direct detection (IMDD) links in terms of reduced effects of fiber nonlinearity, facilitation of multichannel operation, and bandwidth/signal-to-noise ratio (SNR) tradeoffs are identified. A detailed theoretical analysis of the SNR of FMCD links is carried out and compared to that for IMDD links. In the experimental FMCD link, a novel source laser tuning technique, based on the quantum confined Stark effect, is used. The experimental results are presented and compared with the predictions of the theoretical analysis
Keywords :
frequency modulation; microwave links; optical fibre communication; optical modulation; bandwidth; fiber nonlinearity; laser tuning; microwave frequency; multichannel operation; optical frequency modulation coherent detection link; quantum confined Stark effect; signal-to-noise ratio; Bandwidth; Fiber lasers; Frequency modulation; Intensity modulation; Laser theory; Laser tuning; Microwave frequencies; Optical fiber theory; Optical modulation; Signal to noise ratio;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
