中国物理B ›› 2019, Vol. 28 ›› Issue (8): 84209-084209.doi: 10.1088/1674-1056/28/8/084209

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

The 2-μm to 6-μm mid-infrared supercontinuum generation in cascaded ZBLAN and As2Se3 step-index fibers

Jinmei Yao(姚金妹), Bin Zhang(张斌), Ke Yin(殷科), Jing Hou(侯静)   

  1. 1 College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China;
    2 State Key Laboratory of Pulsed Power Laser Technology, Changsha 410073, China;
    3 Hunan Provincial Key Laboratory of High Energy Laser Technology, Changsha 410073, China;
    4 National Innovation Institute of Defense Technology, Academy of Military Sciences PLA, Beijing 100010, China
  • 收稿日期:2019-03-31 修回日期:2019-05-08 出版日期:2019-08-05 发布日期:2019-08-05
  • 通讯作者: Bin Zhang, Jing Hou E-mail:nudtzhb@163.com;houjing25@sina.com
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 61435009, 61235008, and 61405254), the Fund from China Scholarship Council (Grant No. 201803170210), and Hunan Provincial Innovation Foundation for Postgraduate (Grant No. CX2018B008).

The 2-μm to 6-μm mid-infrared supercontinuum generation in cascaded ZBLAN and As2Se3 step-index fibers

Jinmei Yao(姚金妹)1, Bin Zhang(张斌)1,2,3, Ke Yin(殷科)4, Jing Hou(侯静)1,2,3   

  1. 1 College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China;
    2 State Key Laboratory of Pulsed Power Laser Technology, Changsha 410073, China;
    3 Hunan Provincial Key Laboratory of High Energy Laser Technology, Changsha 410073, China;
    4 National Innovation Institute of Defense Technology, Academy of Military Sciences PLA, Beijing 100010, China
  • Received:2019-03-31 Revised:2019-05-08 Online:2019-08-05 Published:2019-08-05
  • Contact: Bin Zhang, Jing Hou E-mail:nudtzhb@163.com;houjing25@sina.com
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 61435009, 61235008, and 61405254), the Fund from China Scholarship Council (Grant No. 201803170210), and Hunan Provincial Innovation Foundation for Postgraduate (Grant No. CX2018B008).

摘要:

Fiber-based mid-infrared (MIR) supercontinuum (SC) sources benefit from their spectral brightness and spatial coherence that are needed for many applications, such as spectroscopy and metrology. In this paper, an SC spanning from 2 μm to 6 μm is demonstrated in cascaded ZrF4-BaF2-LaF3-AlF3-NaF (ZBLAN) and As2Se3 step-index fibers. The pump source is a ZBLAN fiber-based MIR SC laser with abundant high-peak-power soliton pulses between 3000 nm and 4200 nm. By concatenating the ZBLAN fiber and the As2Se3 fiber, efficient cascading red-shifts are obtained in the normal dispersion region of the As2Se3 fiber. The spectral behavior of cascaded SC generation shows that the long-wavelength proportion of MIR SC generated in the ZBLAN fiber plays a critical role for further spectral extension in the As2Se3 fiber.

关键词: supercontinuum generation, infrared lasers, fiber lasers, nonlinear

Abstract:

Fiber-based mid-infrared (MIR) supercontinuum (SC) sources benefit from their spectral brightness and spatial coherence that are needed for many applications, such as spectroscopy and metrology. In this paper, an SC spanning from 2 μm to 6 μm is demonstrated in cascaded ZrF4-BaF2-LaF3-AlF3-NaF (ZBLAN) and As2Se3 step-index fibers. The pump source is a ZBLAN fiber-based MIR SC laser with abundant high-peak-power soliton pulses between 3000 nm and 4200 nm. By concatenating the ZBLAN fiber and the As2Se3 fiber, efficient cascading red-shifts are obtained in the normal dispersion region of the As2Se3 fiber. The spectral behavior of cascaded SC generation shows that the long-wavelength proportion of MIR SC generated in the ZBLAN fiber plays a critical role for further spectral extension in the As2Se3 fiber.

Key words: supercontinuum generation, infrared lasers, fiber lasers, nonlinear

中图分类号:  (Fiber lasers)

  • 42.55.Wd
42.81.-i (Fiber optics) 42.65.Ky (Frequency conversion; harmonic generation, including higher-order harmonic generation)