VOx/NaVO3 nanocomposite as a novel saturable absorber for passive Q-switching operation

Linghao Kong; Hongwei Chu; Na Li; Han Pan; Shengzhi Zhao; Dechun Li

doi:10.3788/COL202220.051601

Journals >Chinese Optics Letters >Volume 20 >Issue 5 >Page 051601 > Article

Chinese Optics Letters
Vol. 20, Issue 5, 051601 (2022)

VO_x/NaVO₃ nanocomposite as a novel saturable absorber for passive Q-switching operation

Linghao Kong¹, Hongwei Chu^1、*, Na Li², Han Pan¹, Shengzhi Zhao¹, and Dechun Li^1、**

Author Affiliations

¹School of Information Science and Engineering, Shandong University, Qingdao 266237, China

²School of Physics and Technology, University of Jinan, Jinan 250022, China

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DOI: 10.3788/COL202220.051601 Cite this Article Set citation alerts

Linghao Kong, Hongwei Chu, Na Li, Han Pan, Shengzhi Zhao, Dechun Li. VO_x/NaVO₃ nanocomposite as a novel saturable absorber for passive Q-switching operation[J]. Chinese Optics Letters, 2022, 20(5): 051601 Copy Citation Text

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Abstract

We report VO_x

/ {NaVO}_{3}

nanocomposite as a novel saturable absorber for the first time, to the best of our knowledge. The efficient nonlinear absorption coefficient and the modulation depth are determined by the Z-scan technology. As a saturable absorber, a passively Q-switched Nd-doped bulk laser at 1.34 µm is demonstrated, producing the shortest pulse duration of 129 ns at a repetition rate of 274 kHz. In the passively Q-switched Tm:YLF laser with the prepared saturable absorber, the shortest pulse duration was 292 ns with a repetition rate of 155 kHz. Our work confirmed the saturable absorption in VO_x