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.
© 2022 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Pal Maak, Laszlo Jakab, Peter Richter, Hans J. Eichler, and Baining Liu
Appl. Opt. 39(18) 3053-3059 (2000)
Li Wang, Jintao Wang, Jingwei Yang, Xianyou Wu, Dunlu Sun, Shaotang Yin, Haihe Jiang, Jiyang Wang, and Changqing Xu
Opt. Lett. 38(12) 2150-2152 (2013)
D. Martyshkin, V. Fedorov, S. J. Hamlin, and S. Mirov
Opt. Express 31(11) 18525-18532 (2023)