High efficient beam cleanup based on stimulated Brillouin scattering with a large core fiber
2014 ◽
Vol 32
(4)
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pp. 517-521
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Keyword(s):
AbstractA novel approach of beam cleanup based on stimulated Brillouin scattering with a large core fiber is proposed to improve the laser beam quality. The fusion splice scheme from a single-mode fiber to a very large core fiber (105 µm) is first employed in stimulated Brillouin scattering to steadily excite the fundamental mode of the Stokes beam. As a result, the output beam achieves a measured M2 value of around 1.3 meanwhile the pump conversion efficiency is up to 90%, which is the best in the reports of stimulated Brillouin scattering cleanup to our knowledge.
2018 ◽
Vol 74
(7)
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pp. 3264-3277
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1986 ◽
Vol 16
(2)
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pp. 259-263
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1998 ◽
Vol 152
(1-3)
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pp. 65-70
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1983 ◽
Vol 13
(6)
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pp. 830-832
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2014 ◽
Vol 496-500
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pp. 918-921