2.79-µm efficient acousto-optic Q switched Er,Cr:YSGG laser with an LiNbO3 crystal modulator-Reference-Cited by-同舟云学术

2.79-µm efficient acousto-optic Q switched Er,Cr:YSGG laser with an LiNbO₃ crystal modulator

Published:2022-11-23 Issue:23 Volume:47 Page:6193
ISSN:0146-9592
Container-title:Optics Letters
language:en
Short-container-title:Opt. Lett.

Author:

Jiang Ling-Ling¹²,Wu Zhong-Chao³,Cheng Ting-Qing¹,Jiang HaiHe¹

Affiliation:

1. Institute of Health and Medical Technology, Hefei Institutes of Physical Science

2. University of Science and Technology of China

3. The 26th Research Institute of China Electronics Technology Group Corporation

Abstract

We fabricate a novel, to the best of our knowledge, acousto-optic Q switch in the 3-micron wavelength range using a longitudinal acoustic mode in a lithium niobate (LiNbO3) crystal. The device is designed based on properties of the crystallographic structure and material to obtain a high diffraction efficiency close to the theoretical prediction. The effectiveness of the device is verified by application in an Er,Cr:YSGG laser at 2.79 µm. The maximum diffraction efficiency reached 57% at the radio frequency of 40.68 MHz. At the repetition rate of 50 Hz, the maximum pulse energy was 17.6 mJ and the corresponding pulse width was 55.2 ns. The effectiveness of bulk LiNbO3 as an acousto-optic Q switch is verified for the first time.

Funder

National Key Research and Development Program of China

Publisher

Optica Publishing Group

Subject

Atomic and Molecular Physics, and Optics

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