journal article·2020-10-23

CoS2 with 3D Valence Electron Shell Structure for Pulsed Laser Application

Lirong Jing, Xiaohui Li, Chong Wang, Xu Wang, Wenfeng Luo, Mengjia Qu, Yujie Ren, Ziyan Wu, Ziyang Zhang, Hongmei Chen

ACS Applied Nano Materials· Volume 3· Issue 10
Publisher page

Abstract

CoS2 with a three-dimensional porous structure has attracted great interest because of its excellent electrical, magnetic, and optical properties. However, the nonlinear optical properties of CoS2 have not been studied so far. Here, CoS2 is utilized to act as an optical modulator first. A passively mode-locked Er-doped fiber laser is proposed with CoS2 on a microfiber. The nonlinear optical properties of CoS2 are systematically characterized. The modulation depth is 3.7% through a dual-balance monitoring system. More importantly, CoS2 has not been applied in ultrafast photonics. The mode-locked rectangular shape pulses with large chirp based on CoS2 saturable absorber have been achieved for the first time to our knowledge. The rectangular pulsed fiber laser has many advantages, such as high pulse energy and high pumping efficiency. It marks further development of CoS2 materials in optical fiber communication, ultrafast photonics, and other aspects.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Advanced Fiber Laser Technologies · Laser-Matter Interactions and Applications · Photonic Crystal and Fiber Optics

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

Affiliations

College of Physics and Information Technology, Shaanxi Normal University, Xi’an, Shaanxi 710119, PR China

Electronic Engineering Institute, Xi’an University of Posts and Telecommunications, Xi’an, Shaanxi 710121, PR China

Key Laboratory of Nanodevices and Applications, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China

Nanchang Research Institute, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Nanchang 330200, China

Funding

State Key Laboratory of Information Photonics and Optical Communications · National Natural Science Foundation of China · Shaanxi Normal University · Xi?an University of Posts and Telecommunications Graduate Innovation Fund · Shaanxi international cooperation project · State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Sciences · Xi'an University of Posts and Telecommunications Joint Postgraduate Cultivation Workstation

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