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19 January 2011Generation of optical pulses using a self-seeded Fabry-Perot laser diode and a tilted multimode fiber Bragg grating
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.
Tongjian Cai,Yunqi Liu, andTingyun 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 (19 January 2011); https://doi.org/10.1117/12.888649
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Tongjian Cai, Yunqi Liu, 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 (19 January 2011); https://doi.org/10.1117/12.888649