Comparison of multimode GRIN-fiber Raman lasers with FBG and random DFB cavity

Yizhu Chen, Chenchen Fan, Tianfu Yao, Hu Xiao, Jiangming Xu, Jinyong Leng, Pu Zhou, Alexey G. Kuznetsov, Ilya N. Nemov, Alexey A. Wolf, Sergey I. Kablukov, Evgeny V. Podivilov, Sergey A. Babin

Research output: Contribution to journalConference articlepeer-review

Abstract

Raman lasing in multimode GRIN fibers is accompanied by sufficient improvement of the output beam quality in comparison with that for pump radiation, which offers opportunities to wavelength-agile fiber lasers of new type. Here we compare power scaling and brightness enhancement capabilities of Raman laser based on multimode GRIN-fiber of 62.5/125 um core/cladding diameters pumped by ∼700 W multimode source with beam quality M2∼10, performed in two different cavity configurations: 1) linear cavity based on two fiber Bragg gratings and 2) half-open cavity with one FBG and random distributed feedback via Rayleigh backscattering along the GRIN fiber.

Original languageEnglish
Article number012015
Number of pages5
JournalJournal of Physics: Conference Series
Volume2249
Issue number1
DOIs
Publication statusPublished - 6 May 2022
Event29th Annual International Laser Physics Workshop, LPHYS 2021 - Virtual, Online
Duration: 19 Jul 202123 Jul 2021

OECD FOS+WOS

  • 1.03 PHYSICAL SCIENCES AND ASTRONOMY

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