High-Power Passively Q-Switched Nd:YVO4 Laser Based on WS2 Saturable Absorber

Yun Wang; Sicong Liu; Jiang Wang; Huizhong Wang; Taijin Wang; Yonggang Wang

doi:10.1109/LPT.2020.2998540

High-Power Passively Q-Switched Nd:YVO₄ Laser Based on WS₂ Saturable Absorber

Yun Wang, Sicong Liu, Jiang Wang, Huizhong Wang, Taijin Wang, Yonggang Wang

Shaanxi Normal University

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

In this paper, we fabricated a novel tungsten disulfide (WS₂) saturable absorber (SA) using sol-gel technology and successfully applied it into a Q-switched solid-state laser for the first time. By using sol-gel technology, WS₂ materials are completely separated into sol-gel silica glass, which can effectively protect the WS₂ materials from oxidation and other damages. Inserting the WS₂ SA into the Nd:YVO₄ laser cavity and adjusting it, a stable Q-switched pulse was obtained. The average output power was 3.09 W, the repetition rate was 3.38 MHz and the corresponding pulse duration was 99 ns. As far as we know, this is the highest average output power of WS₂ SA used in Nd-doped solid state lasers, and the pulse duration is also quite narrow. It shows that sol-gel technology has great potential to make practical two dimensional material absorbers.

Original language	English
Article number	9103494
Pages (from-to)	831-834
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	32
Issue number	13
DOIs	https://doi.org/10.1109/LPT.2020.2998540
State	Published - 1 Jul 2020
Externally published	Yes

Keywords

Q-switched laser
saturable absorber
WS

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10.1109/LPT.2020.2998540

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title = "High-Power Passively Q-Switched Nd:YVO4 Laser Based on WS2 Saturable Absorber",

abstract = "In this paper, we fabricated a novel tungsten disulfide (WS2) saturable absorber (SA) using sol-gel technology and successfully applied it into a Q-switched solid-state laser for the first time. By using sol-gel technology, WS2 materials are completely separated into sol-gel silica glass, which can effectively protect the WS2 materials from oxidation and other damages. Inserting the WS2 SA into the Nd:YVO4 laser cavity and adjusting it, a stable Q-switched pulse was obtained. The average output power was 3.09 W, the repetition rate was 3.38 MHz and the corresponding pulse duration was 99 ns. As far as we know, this is the highest average output power of WS2 SA used in Nd-doped solid state lasers, and the pulse duration is also quite narrow. It shows that sol-gel technology has great potential to make practical two dimensional material absorbers.",

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author = "Yun Wang and Sicong Liu and Jiang Wang and Huizhong Wang and Taijin Wang and Yonggang Wang",

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AU - Wang, Yun

AU - Liu, Sicong

AU - Wang, Jiang

AU - Wang, Huizhong

AU - Wang, Taijin

AU - Wang, Yonggang

PY - 2020/7/1

Y1 - 2020/7/1

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High-Power Passively Q-Switched Nd:YVO₄ Laser Based on WS₂ Saturable Absorber

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Keywords

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