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Opt Lett. 2011 Jan 15;36(2):130-2. doi: 10.1364/OL.36.000130.

Effect of Rayleigh-scattering distributed feedback on multiwavelength Raman fiber laser generation.

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1
Photonics Research Group, Aston University, Birmingham, B4 7ET, UK. eltaheae@aston.ac.uk

Abstract

We experimentally demonstrate a Raman fiber laser based on multiple point-action fiber Bragg grating reflectors and distributed feedback via Rayleigh scattering in an ~22-km-long optical fiber. Twenty-two lasing lines with spacing of ~100 GHz (close to International Telecommunication Union grid) in the C band are generated at the watt level. In contrast to the normal cavity with competition between laser lines, the random distributed feedback cavity exhibits highly stable multiwavelength generation with a power-equalized uniform distribution, which is almost independent on power.

PMID:
21263476
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