• Chinese Optics Letters
  • Vol. 19, Issue 4, 041403 (2021)
Yihuai Zhu1, Zhijian Zheng1、2, Xiaogang Ge1, Geguo Du3, Shuangchen Ruan1、2, Chunyu Guo1、*, Peiguang Yan1, Ping Hua1, Linzhong Xia4, and Qitao Lü5
Author Affiliations
  • 1Shenzhen Key Laboratory of Laser Engineering, Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes, Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
  • 2College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, China
  • 3College of Electronics and Information Engineering, Shenzhen University, Shenzhen 518060, China
  • 4Shenzhen Institute of Information Technology, Shenzhen 518172, China
  • 5Han’s Laser Technology Industry Group Co., Ltd., Shenzhen 518057, China
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    Abstract

    We experimentally demonstrate an all-fiber supercontinuum source that covers the spectral region ranging from visible to mid-infrared. The ultra-broadband supercontinuum is realized by pumping a cascaded photonic crystal fiber and a highly nonlinear fiber with a 1/1.5 μm dual-band pump source. A maximum output power of 9.01 W is achieved using the system, which is the highest power ever achieved from a supercontinuum source spanning from the visible to mid-infrared.

    1. Introduction

    Supercontinuum sources are demanded in a range of applications such as remote sensing[1], biomedical imaging[24], and military countermeasures[5]. Hitherto, the dominant approach for supercontinuum generation is to pump a nonlinear medium [in most cases, highly nonlinear fibers (HNLFs)] using a pulsed laser[6,7]. In order to realize a broadband supercontinuum, the pump wavelength is desired to be within the anomalous dispersion region and close to the zero dispersion wavelength (ZDW) of the HNLFs, whereby the pulses generated by the pump laser can easily extend into the long-wavelength region through soliton self-frequency shift (SSFS) and extend into the short-wavelength region through group-velocity-matched dispersive wave.

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    Yihuai Zhu, Zhijian Zheng, Xiaogang Ge, Geguo Du, Shuangchen Ruan, Chunyu Guo, Peiguang Yan, Ping Hua, Linzhong Xia, Qitao Lü. High-power, ultra-broadband supercontinuum source based upon 1/1.5 µm dual-band pumping[J]. Chinese Optics Letters, 2021, 19(4): 041403
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    Category: Lasers, Optical Amplifiers, and Laser Optics
    Received: Aug. 7, 2020
    Accepted: Oct. 19, 2020
    Published Online: Jan. 11, 2021
    The Author Email: Chunyu Guo (cyguo@szu.edu.cn)