This article is cited in 10 papers

Fibre lasers

Generation of linearly polarised light near 1.4 μm in a cascaded, random distributed feedback Raman laser

E. A. Zlobina^a, S. I. Kablukov^a, S. A. Babin<sup>ba

a</sup> Institute of Automation and Electrometry, Siberian Branch of Russian Academy of Sciences, Novosibirsk
^b Novosibirsk State University

Abstract: We have demonstrated efficient generation of linearly polarised light by a random distributed feedback laser based on stimulated Raman scattering in a 1.8-km-long fibre, pumped by linearly polarised radiation of an ytterbium-doped fibre laser with a lasing wavelength near 1.06 μm. Cascaded generation up to the fifth Stokes component (1.4 μm) with wavelength tuning by changing the pump wavelength is obtained. The output power of the fourth Stokes component reached 5 W at λ = 1.34 μm. The problems related to the further mastering of the long-wavelength region are discussed.

Keywords: fibre optics, Raman laser, random distributed feedback, cascaded generation, Rayleigh scattering, polarisation-maintaining fibre.

Received: 30.09.2016
Revised: 24.10.2016

 English version: Quantum Electronics, 2016, 46:12, 1102–1105

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