Gain-switched Ho:YAG ceramic laser with an acousto-optic modulator

Jianing Zhang; Deyuan Shen; Jian Zhang; Dingyuan Tang; Hao Chen

doi:10.1117/1.OE.55.4.046115

26 April 2016 Gain-switched Ho:YAG ceramic laser with an acousto-optic modulator

Jianing Zhang, Deyuan Shen, Jian Zhang, Dingyuan Tang, Hao Chen

Author Affiliations +

Optical Engineering, Vol. 55, Issue 4, 046115 (April 2016). https://doi.org/10.1117/1.OE.55.4.046115

Abstract

We demonstrate a gain-switched Ho:YAG ceramic laser in-band pumped by an acousto-optically modulated thulium fiber laser at ∼1908 nm. The laser pulse repetition rate could be tuned continuously from 60 to 100 kHz with the pulse energy kept constant for a certain pump power level. The shortest pulse width of 204 ns and a maximum peak power of 75 W have been obtained at 60 kHz under the maximum pump power level of 11 W. A maximum average output power of 1.4 W has been achieved with a pulse repetition rate of 100 kHz, corresponding to a slope efficiency of 57% with respect to the incident pump power. The prospects for further improvement in laser performance are discussed.

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Jianing Zhang, Deyuan Shen, Jian Zhang, Dingyuan Tang, and Hao Chen "Gain-switched Ho:YAG ceramic laser with an acousto-optic modulator," Optical Engineering 55(4), 046115 (26 April 2016). https://doi.org/10.1117/1.OE.55.4.046115

Published: 26 April 2016

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KEYWORDS

Ceramics

Pulsed laser operation

Bragg cells

Modulation

Fiber lasers

Continuous wave operation

Output couplers

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