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Optical Engineering

High-repetition-rate pulse generation using dual-mode self-injection locking in a Fabry-Perot laser diode
Author(s): Xiaohui Fang; Ping-Kong A. Wai; Chao Lu; Hwa-Yaw Tam; Xinyong Dong
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Paper Abstract

A novel and simple method is presented to generate a tunable high-repetition-rate pulse train based on dual-mode self-injection locking of a Fabry-Perot laser diode (FP-LD). Two fiber Bragg gratings (FBGs) are used in the experiment as feedback components. The two self-injection-locked modes evolve into a high-power, high-repetition-rate pulse train through the interplay between self-phase modulation and anomalous dispersion in a highly nonlinear fiber. A 139.6-GHz transform-limited pulse train with a peak power of 120 mW is generated. The pulsewidth is 1.7 ps, and the time-bandwidth product is 0.31. The repetition rate can be tuned by tuning the Bragg wavelengths of one of the two or both FBGs to coincide with other FP-LD modes. The output pulse is stable.

Paper Details

Date Published: 1 July 2010
PDF: 5 pages
Opt. Eng. 49(7) 074201 doi: 10.1117/1.3456597
Published in: Optical Engineering Volume 49, Issue 7
Show Author Affiliations
Xiaohui Fang, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Ping-Kong A. Wai, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Chao Lu, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Hwa-Yaw Tam, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Xinyong Dong, The Hong Kong Polytechnic Univ. (Hong Kong, China)


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