Experimental investigation of the impact of optical injection on vital parameters of a gain-switched pulse source

OPTICS COMMUNICATIONS

卷:277

Article

关键词: semiconductor lasers;    pulse generation;    optical injection;    frequency resolved optical gating;    optical pulse measurement;   

DOI  :  10.1016/j.optcom.2007.04.058

来源: Elsevier

【 摘 要 】

An analysis of optical injection on a gain-switched distributed feedback (DFB) laser and its impact on pulse parameters that influence the performance of the pulse source in high-speed optical communication systems is presented in this paper. A range of 10 GHz in detuning and 5 dB in injected power has been experimentally identified to attain pulses, from an optically injected gain-switched DFB laser, with durations below 10 ps and pedestal suppression higher than 35 dB. These pulse features are associated with a side mode suppression ratio of about 30 dB and a timing jitter of less than I ps. This demonstrates the feasibility of using optical injection in conjunction with appropriate pulse compression schemes for developing an optimized and cost-efficient pulse source, based on a gain-switched DFB laser, for high-speed photonic systems. (c) 2007 Published by Elsevier B.V.

【 授权许可】

Free