Compact conductively cooled electro-optical Q-switched Nd:YAG laser

Chaoyang Li; Chengqiang Lu; Chuan Li; Yannan Zang; Zhen Yang; Song Han; Ye Li; Ning Yang; Junfeng Shi; Zewu Zhou

doi:10.1117/1.OE.56.11.116115

29 November 2017 Compact conductively cooled electro-optical Q-switched Nd:YAG laser

Chaoyang Li, Chengqiang Lu, Chuan Li, Yannan Zang, Zhen Yang, Song Han, Ye Li, Ning Yang, Junfeng Shi, Zewu Zhou

Author Affiliations +

Optical Engineering, Vol. 56, Issue 11, 116115 (November 2017). https://doi.org/10.1117/1.OE.56.11.116115

Abstract

We report on a compact conductively cooled high-repetition-rate nanosecond Nd:YAG laser. The oscillator was an laser diode side-pumped electro-optical (EO) Q-switched Nd:YAG rod laser adopting unstable cavity with a variable reflectivity mirror. A pulse train of 142 mJ with duration of 10 ns, repetition rate of 80 Hz at 1064 nm has been achieved. Maximum pulse energy was obtained at the pump energy of 1380 mJ, corresponding to the optical–optical conversion efficiency of 10.3%. The peak power was deduced to be 14.2 MW. The near-field pattern demonstrated a nearly super Gaussian flat top profile. To our knowledge, this is the highest repetition rate operation for a conductively cooled EO Q-switched Nd:YAG rod laser.

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Chaoyang Li, Chengqiang Lu, Chuan Li, Yannan Zang, Zhen Yang, Song Han, Ye Li, Ning Yang, Junfeng Shi, and Zewu Zhou "Compact conductively cooled electro-optical Q-switched Nd:YAG laser," Optical Engineering 56(11), 116115 (29 November 2017). https://doi.org/10.1117/1.OE.56.11.116115

Received: 24 August 2017; Accepted: 13 November 2017; Published: 29 November 2017

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