journal article·2024-04-12

GeS2 Nanosheets as Saturable Absorbers for High Signal-to-Noise Ratio in an L-Band Ultrafast Pulsed Laser

Xuefen Kan, Zixin Yang, Bin Liu, Siyu Li, Gaojie Ye, Zhuoyan Xie, Yinlong Luo, Xueyu Liu, Yan Lu, Yan Zhang, Junrong Zhang, Zheng Shen, Jia Xu, Wei Su, Cheng Yin, Qiang Yu, Sicong Zhu, Jian Wu

ACS Applied Nano Materials· Volume 7· Issue 7
Publisher page

Abstract

Recently, two-dimensional (2D) materials have attracted increasing attention as promising saturable absorbers (SAs) due to their excellent optoelectronic properties, which enable ultrashort duration, low time jitter, and good stability. Here, we have successfully proposed and demonstrated an L-band (@1568 nm) mode-locked fiber laser assisted by GeS 2 –SA. A high signal-to-noise ratio (SNR) ultrafast pulse generation with weak correlation van der Waals GeS 2 nanosheets has been prepared for the development of ultrashort pulse output. The modulation depth and saturation intensity of GeS 2 –SA are 6.1% and 0.012 MW/cm 2, respectively. Nanoscale GeS 2 –SA-based erbium-doped fiber pulse laser is demonstrated with a high SNR of 71 dB and a pulse duration of 907 fs. This result extends the family of 2D material-based L-band pulsed lasers and proves that the GeS 2 nanosheets hold promise for application in ultrafast optics.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Advanced Fiber Laser Technologies · Laser-Matter Interactions and Applications · Solid State Laser Technologies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Transportation Engineering, Jiangsu Shipping College, Nantong 226010, China

College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China

The State Key Laboratory for Refractories and Metallurgy, Collaborative Innovation Center for Advanced Steels, International Research Institute for Steel Technology, Wuhan University of Science and Technology, Wuhan 430081, China

College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang 330022, China

College of Information Science and Engineering, Hohai University, Changzhou 213200, China

College of Mechanical and Electrical Engineering, Hohai University, Changzhou 213200, China

i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China

College of Science, Hohai University, Changzhou 213022, China

Department of Mechanical Engineering, National University of Singapore, Singapore117575, Singapore

Funding

Jiangsu Provincial Department of Education · Hunan Province · Key Laboratory for Intelligent Nano Materials and Devices, Ministry of Education · Hubei Province Key Laboratory of Systems Science in Metallurgical Process, Wuhan University of Science and Technology

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