24 November 2015 Modulation frequency characteristics of the Q-switched envelope in a doubly Q-switched and mode-locked laser with acousto-optic modulator and Cr4+:YAG saturable absorber
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Abstract
The modulation frequency characteristics of the Q-switched envelope in a doubly Q-switched and mode-locked Nd:GGG laser with an acousto-optic modulator (AOM) and Cr4+:YAG saturable absorber are given. At a fixed incident pump power, the repetition rates of the Q-switched envelope and the related laser characteristics versus the modulation frequency of AOM for different small signal transmissions of Cr4+:YAG saturable absorbers have been measured. The experimental results show that the repetition rates of the Q-switched envelope, the average output power, the average peak power, and the pulse widths of the Q-switched envelopes are subharmonics of the modulation frequency at a fixed incident pump power. Furthermore, the mechanism for these behaviors is discussed.
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
Junpeng Qiao, Jia Zhao, Yufei Li, Shengzhi Zhao, Guiqiu Li, Dechun Li, Wenchao Qiao, Hongwei Chu, "Modulation frequency characteristics of the Q-switched envelope in a doubly Q-switched and mode-locked laser with acousto-optic modulator and Cr4+:YAG saturable absorber," Optical Engineering 54(11), 116107 (24 November 2015). https://doi.org/10.1117/1.OE.54.11.116107 . Submission:
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