Highly stable pulsed fiber laser generation modulated by chromium iodide film
Author:
Li Ning1, Du Lin1, Liu Dongyang1, Wu Jiadong1, He Yuan1, Feng Yi1, Wu Man2, Miao Lili1ORCID, Zhao Chujun1ORCID
Affiliation:
1. State Key Laboratory for Micro/Nano Optoelectronic Devices of Ministry of Education & Hunan Provincial Key Laboratory of Low-Dimensional Structural Physics and Devices. School of Physics and Electronics, Hunan University , Changsha 410082 , China 2. School of Physics and Electronic Science, Hunan University of Science and Technology , Xiangtan 411201 , China
Abstract
Abstract
Highly stable pulsed fiber lasers are key optical components in optical communication, optical sensing, and precision micromachining systems due to the high beam quality, high peak power, and compact configurations. However, the available optical modulators in the fiber laser suffer from the operation bandwidth limitations and poor long-term physicochemical stability. Here, we have investigated the broadband nonlinear optical absorption behavior of the chromium iodide (CrI3) film, which exhibits broadband saturable absorption towards the mid-infrared regime and excellent long-term stability. The conventional soliton fiber laser operating at telecom wavelength has been obtained from an Er3+-doped fiber laser (EDFL) utilizing CrI3 film with a signal-to-noise ratio (SNR) of 92.4 dB and a pulse width of 492 fs. In addition, a passively Q-switched operation around 2.8 μm has also been obtained from an Er3+-doped ZBLAN fiber laser (EDZFL) modulated by the CrI3 film with a SNR of 46.8 dB and a pulse width of 766 ns. The demonstration shows that the CrI3 film exhibits robust broadband optical modulation, and may make inroads for developing highly stable ultrafast optoelectronic devices.
Funder
National Natural Science Foundation of China Scientific Research Project of Hunan Provincial Education Department Natural Science Foundation of Hunan Province
Publisher
Walter de Gruyter GmbH
Subject
Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials,Biotechnology
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