Optical properties and applications of SnS2 SAs with different thickness

Mengli Liu; Hongbo Wu; Ximei Liu; Yaorong Wang; Ming Lei; Wenjun Liu; Wei Guo; Zhiyi Wei

doi:10.29026/oea.2021.200029

Opto-Electronic Advances (Sep 2021)

Optical properties and applications of SnS2 SAs with different thickness

Mengli Liu,
Hongbo Wu,
Ximei Liu,
Yaorong Wang,
Ming Lei,
Wenjun Liu,
Wei Guo,
Zhiyi Wei

Affiliations

Mengli Liu: State Key Laboratory of Information Photonics and Optical Communications, School of Science, P. O. Box 91, Beijing University of Posts and Telecommunications, Beijing 100876, China
Hongbo Wu: School of Physics, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing 100081, China
Ximei Liu: State Key Laboratory of Information Photonics and Optical Communications, School of Science, P. O. Box 91, Beijing University of Posts and Telecommunications, Beijing 100876, China
Yaorong Wang: State Key Laboratory of Information Photonics and Optical Communications, School of Science, P. O. Box 91, Beijing University of Posts and Telecommunications, Beijing 100876, China
Ming Lei: State Key Laboratory of Information Photonics and Optical Communications, School of Science, P. O. Box 91, Beijing University of Posts and Telecommunications, Beijing 100876, China
Wenjun Liu: State Key Laboratory of Information Photonics and Optical Communications, School of Science, P. O. Box 91, Beijing University of Posts and Telecommunications, Beijing 100876, China
Wei Guo: School of Physics, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing 100081, China
Zhiyi Wei: Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

DOI: https://doi.org/10.29026/oea.2021.200029
Journal volume & issue: Vol. 4, no. 10
pp. 1 – 10

Abstract

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Q-switched lasers have occupied important roles in industrial applications such as laser marking, engraving, welding, and cutting due to their advantages in high pulse energy. Here, SnS2-based Q-switched lasers are implemented. Considering that SnS2 inherits the thickness sensitive optical characteristics of TMD, three kinds of SnS2 with different thickness are characterized in terms of nonlinearity and used to realize the Q-switched pulses under consistent implementation conditions for comparison tests. According to the results, the influence of thickness variation on the nonlinear performance of saturable absorber, such as modulation depth and absorption intensity, and the influence on the corresponding laser are analyzed. In addition, compared with other traditional saturable absorbers, the advantage of SnS2 in realizing ultrashort pulses is also noticed. Our work explores the thickness-dependent nonlinear optical properties of SnS2, and the rules found is of great reference value for the establishment of target lasers.

Published in Opto-Electronic Advances

ISSN: 2096-4579 (Print)
Publisher: Institue of Optics and Electronics, Chinese Academy of Sciences
Country of publisher: China
LCC subjects: Science: Physics: Optics. Light
Website: http://www.oejournal.org/oea

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