期刊
OPTICS EXPRESS
卷 17, 期 21, 页码 19067-19074出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.17.019067
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资金
- Canadian Institute for Photonics Innovation (CIPI)'s BP5 Project: 'Biopsy'
- Govt. of Canada's Canada Research Chairs Program
We demonstrate a novel random laser based on a single fiber Bragg grating. A long fiber Bragg grating fabrication technique allows the insertion of a large number of randomly distributed phase errors in the structure of the grating which induces light localization. By writing such a grating in a polarisation maintaining Er-doped fiber, a random laser is demonstrated by pumping the fiber with 976 and 1480 nm pump lasers. The number of emitted modes is observed to be a function of the length of the grating and of the pump power and single-mode operation is shown to be possible. The random fiber laser shows low-threshold (similar to 3 mW) and measured similar to 0.5 pm emission linewidth at a wavelength of around 1534 nm. (C) 2009 Optical Society of America
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