中国物理B ›› 2019, Vol. 28 ›› Issue (6): 64205-064205.doi: 10.1088/1674-1056/28/6/064205

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

Monolithic all-fiber mid-infrared supercontinuum source based on a step-index two-mode As2S3 fiber

Jinmei Yao(姚金妹), Bin Zhang(张斌), 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
  • 收稿日期:2018-12-14 修回日期:2019-02-11 出版日期:2019-06-05 发布日期:2019-06-05
  • 通讯作者: Bin Zhang E-mail:nudtzhb@163.com
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 61435009, 61235008, and 61405254).

Monolithic all-fiber mid-infrared supercontinuum source based on a step-index two-mode As2S3 fiber

Jinmei Yao(姚金妹)1, Bin Zhang(张斌)1,2,3, 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
  • Received:2018-12-14 Revised:2019-02-11 Online:2019-06-05 Published:2019-06-05
  • Contact: Bin Zhang E-mail:nudtzhb@163.com
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 61435009, 61235008, and 61405254).

摘要:

We demonstrate efficient supercontinuum generation extending into mid-infrared spectral range by pumping a two-mode As2S3 fiber in the normal dispersion regime. The As2S3 fiber is fusion spliced to the pigtail of a near-infrared supercontinuum pump source with ultra-low splicing loss of 0.125 dB, which enables a monolithic all-fiber mid-infrared supercontinuum source. By two-mode excitation and mixed-mode cascaded stimulated Raman scattering, a supercontinuum spanning from 1.8 μm to 4.2 μm is obtained. Over 70% of the supercontinuum power is converted to wavelengths beyond 2.4 μm. This is the first experimental report with respect to the multimode mid-infrared supercontinuum generation in a step-index two-mode chalcogenide fiber.

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

Abstract:

We demonstrate efficient supercontinuum generation extending into mid-infrared spectral range by pumping a two-mode As2S3 fiber in the normal dispersion regime. The As2S3 fiber is fusion spliced to the pigtail of a near-infrared supercontinuum pump source with ultra-low splicing loss of 0.125 dB, which enables a monolithic all-fiber mid-infrared supercontinuum source. By two-mode excitation and mixed-mode cascaded stimulated Raman scattering, a supercontinuum spanning from 1.8 μm to 4.2 μm is obtained. Over 70% of the supercontinuum power is converted to wavelengths beyond 2.4 μm. This is the first experimental report with respect to the multimode mid-infrared supercontinuum generation in a step-index two-mode chalcogenide 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)