All-fiber cyan laser at 491.5 nm

Author:

Hong Jinfen1,Zou Jinhai,Wang Yushu2,Ruan Qiujun,Chen Tingting,Cheng Yang2,Bu Yikun,Luo Zhengqian1ORCID

Affiliation:

1. Shenzhen Research Institution of Xiamen University

2. SuZhou Maxwell Technologies Co. Ltd.

Abstract

We report, for the first time to our knowledge, a compact continuous-wave all-fiber cyan laser. The all-fiber cavity consists of a 443-nm fiber-pigtail laser diode as pump source, a 4.5-cm single-clad Pr3+-doped fluoride fiber, and two custom-built dielectric-coated fiber-pigtail mirrors in the visible spectral region. Downconversion cyan lasing at 491.5 nm is directly achieved, providing a maximum output power of 97.5 mW with a slope efficiency of 23.7% and a power fluctuation of less than 0.41%. Such a compact all-fiber cyan laser may be of great significance to expand the color reproduction range of laser displays, and has potential applications in fluorescence imaging, underwater communication, and detection.

Funder

Shenzhen Science and Technology Projects

National Natural Science Foundation of China

Fundamental Research Funds for the Central Universities

Publisher

Optica Publishing Group

Subject

Atomic and Molecular Physics, and Optics

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