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BULLETIN OF THE CHINESE CERAMIC SOCIETY ›› 2022, Vol. 41 ›› Issue (11): 3733-3744.

Special Issue: 玻璃

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Research Progress on Er ∶ZBLAN Mid-Infrared Fiber Lasers Emitting at 2.8 μm

ZHAO Wenkai, WANG Yuchen, LI Yanchao, ZHANG Longfei, LIU Ruite, ZHOU Zhiming, ZHANG Long, JIANG Yiguang   

  1. Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • Received:2022-08-12 Revised:2022-09-20 Online:2022-11-15 Published:2022-12-12

Abstract: The mid-infrared (MIR) region plays an important role in the fields of environmental monitoring, material processing, surgery and defense. Currently, low-loss high-concentration Er3+-doped ZBLAN (Er ∶ZBLAN) fiber is one of the main promising gain media for 3 μm MIR laser sources. Er ∶ZBLAN fiber lasers have the advantages of being easily integrated, highly efficient and directly diode-pumped in comparison to other 3 μm-class lasers. With improving performance, Er ∶ZBLAN lasers are expected to reach maturity and commercialized at wavelength of near 3 μm firstly. The working principle and status of Er ∶ZBLAN fiber laser were briefly described in this paper, and the existing problems of three different Er ∶ZBLAN fiber lasers were analyzed and summarized. Finally, the development trends were also prospected.

Key words: mid-infrared, laser output, energy level structure, Er ∶ZBLAN fiber, continuous fiber laser, pulsed fiber laser, wavelength-tunable fiber laser

CLC Number: