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Proceedings Article

Generation of optical pulses using a self-seeded Fabry-Perot laser diode and a tilted multimode fiber Bragg grating

[+] Author Affiliations
Tongjian Cai, Yunqi Liu, Tingyun Wang

Shanghai Univ. (China)

Proc. SPIE 7986, Passive Components and Fiber-Based Devices VII, 798614 (January 19, 2011); doi:10.1117/12.888649
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From Conference Volume 7986

  • Passive Components and Fiber-Based Devices VII
  • Perry P. Shum
  • Shanghai, China | December 08, 2010

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.

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Citation

Tongjian Cai ; Yunqi Liu and Tingyun Wang
"Generation of optical pulses using a self-seeded Fabry-Perot laser diode and a tilted multimode fiber Bragg grating", Proc. SPIE 7986, Passive Components and Fiber-Based Devices VII, 798614 (January 19, 2011); doi:10.1117/12.888649; http://dx.doi.org/10.1117/12.888649


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