Efficient pulsed laser operation of Yb-doped Gd3Sc2Ga3O12 mixed crystal

Qiyao Liu; Hualei Yuan; Xiaojun Dai; Yan Zhang; Yongguang Zhao; Honghao Xu; Zhongben Pan

doi:10.1117/1.OE.57.9.096103

8 September 2018 Efficient pulsed laser operation of Yb-doped Gd₃Sc₂Ga₃O₁₂ mixed crystal

Qiyao Liu, Hualei Yuan, Xiaojun Dai, Yan Zhang, Yongguang Zhao, Honghao Xu, Zhongben Pan

Author Affiliations +

Optical Engineering, Vol. 57, Issue 9, 096103 (September 2018). https://doi.org/10.1117/1.OE.57.9.096103

Abstract

We demonstrate the laser performance of a gadolinium scandium gallium garnet (GSGG) single crystal with 10 at.% Yb^3 +-doping concentration. In the case of continuous-wave operation, the laser wavelength was blueshifted in the range from 1067.1 to 1027.2 nm with increasing the transmission of the output coupler from 0.5% to 30%. The maximum output power produced was 3.2 W with 3% output transmission. By employing a Cr^4 + : YAG crystal as the saturable absorber, a stable Q-switched laser beam with 21-ns pulse duration and 38-μJ single-pulse energy was achieved at a 20-kHz repetition rate. This laser crystal should be a promising candidate for nanosecond pulse generation especially in harsh environments, such as outer space, due to its wide absorption and emission spectral bandwidths and strong radiation resistance.

Citation Download Citation

Qiyao Liu, Hualei Yuan, Xiaojun Dai, Yan Zhang, Yongguang Zhao, Honghao Xu, and Zhongben Pan "Efficient pulsed laser operation of Yb-doped Gd₃Sc₂Ga₃O₁₂ mixed crystal," Optical Engineering 57(9), 096103 (8 September 2018). https://doi.org/10.1117/1.OE.57.9.096103

Received: 14 June 2018; Accepted: 25 August 2018; Published: 8 September 2018

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