A 2 micron passively Q-switched bulk state pulsed laser based on WS2

Xihu Wang; Jinlong Xu; Shufang Gao; Yunyun Liu; Zhenyu You; Chaoyang Tu

doi:10.1039/C7RA07627D

A 2 micron passively Q-switched bulk state pulsed laser based on WS₂

Xihu Wang,

^ab Jinlong Xu,^c Shufang Gao,^d Yunyun Liu,^ab Zhenyu You^a and Chaoyang Tu*^a

Author affiliations

* Corresponding authors

^a Key Laboratory of Optoelectronic Materials Chemistry and Physics of CAS, Fujian Institute of Research on the Structure of Matter, CAS, Fuzhou, Fujian 350002, China
E-mail: tcy@fjirsm.ac.cn

^b University of Chinese Academy of Sciences, Beijing 100039, China

^c School of Electronic Science and Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China

^d School of Physics and Optoelectronic Engineering, Yangtze University, Jingzhou, PR China

Abstract

We report a 2 micron passively Q-switched bulk state pulsed laser with a pulse of 430 ns based on graphene-like 2D WS₂ nanosheets. To the best of our knowledge, it is the shortest pulse compared with other bulk state lasers based on WS₂ saturable absorbers at this waveband. The WS₂ nanosheets are prepared through a facile hydrothermal reaction. Its max output power and pulse energy are 488 mW and 5.422 μJ, respectively. The wavelength is distributed from 1934 to 1942 nm. These results reveal that WS₂ is a promising nanomaterial in the fields of photonics and electronics.

Article information

https://doi.org/10.1039/C7RA07627D

Article type

Paper

Submitted

11 Jul 2017

Accepted

02 Oct 2017

First published

10 Oct 2017

This article is Open Access

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RSC Adv., 2017,7, 47565-47569

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A 2 micron passively Q-switched bulk state pulsed laser based on WS₂

X. Wang, J. Xu, S. Gao, Y. Liu, Z. You and C. Tu, RSC Adv., 2017, 7, 47565 DOI: 10.1039/C7RA07627D

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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A 2 micron passively Q-switched bulk state pulsed laser based on WS₂

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A 2 micron passively Q-switched bulk state pulsed laser based on WS₂

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