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Proceedings Paper

Generation of optical pulses using a self-seeded Fabry-Perot laser diode and a tilted multimode fiber Bragg grating
Author(s): Tongjian Cai; Yunqi Liu; Tingyun Wang
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Paper Abstract

We have demonstrated experimentally simultaneous generation of wavelength-switchable picosecond laser pulses by using a self-seeding configuration that consists of a gain-switched Fabry-Perot laser diode (FP-LD) with an external cavity formed by a tilted multimode fiber Bragg grating (MMFBG). Wavelength-switchable picosecond pulses are obtained and can be switched in a flexible manner by changing the temperature of FP-LD and the modal distribution in the grating. The generation and wavelength switching of short pulses are demonstrated experimentally at 9 discrete wavelengths. The laser pulses have a side mode suppression ratio better than 25dB and a pulsewidth of ~42ps. In particular, we could also obtain dual- and triple-wavelength laser pulses by adjusting the polarization controller carefully in the experiment. This simple laser offers considerable flexibility for various applications such as fiber laser sensors.

Paper Details

Date Published: 19 January 2011
PDF: 8 pages
Proc. SPIE 7986, Passive Components and Fiber-Based Devices VII, 798614 (19 January 2011); doi: 10.1117/12.888649
Show Author Affiliations
Tongjian Cai, Shanghai Univ. (China)
Yunqi Liu, Shanghai Univ. (China)
Tingyun Wang, Shanghai Univ. (China)

Published in SPIE Proceedings Vol. 7986:
Passive Components and Fiber-Based Devices VII
Perry P. Shum, Editor(s)

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