Linearly polarized intracavity passive Q-switched Yb-doped photonic crystal fibre laser |
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Authors: | USHA CHAKRAVARTY ANTONY KURUVILLA RAJPAL SINGH B N UPADHYAY K S BINDRA S M OAK |
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Institution: | 1. Solid State Laser Division, Raja Ramanna Centre for Advanced Technology, Indore, 452 013, India
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Abstract: | In this paper we report linearly polarized high average power passive Q-switched ytterbium-doped photonic crystal fibre laser with a Cr4+:YAG crystal as a saturable absorber. An average output power of 9.4 W with pulse duration of 64 ns and pulse repetition rate of 57.4 kHz with a slope efficiency of 52% was achieved. Measured polarization extinction ratio (PER) of the Q-switched laser output was 10.5 dB. |
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