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Experimental Study of the Transverse Mode Instability in a 3kW-level Bidirectional-pumped All-fiber Laser Oscillator

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Abstract

We have experimentally studied transverse mode instability (TMI) in an all-fiber laser oscillator in co-pumping, counter-pumping and bidirectional-pumping schemes, respectively. The TMI thresholds and the corresponding temporal characteristic are compared in different pumping schemes.

© 2017 Optical Society of America

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