熊浩, 王天枢, 纪海莹, 袁泉, 马万卓, 林鹏, 孙梦茹. 基于类噪声脉冲抽运的平坦超连续谱光源[J]. 应用光学, 2021, 42(4): 743-748. DOI: 10.5768/JAO202142.0405002
引用本文: 熊浩, 王天枢, 纪海莹, 袁泉, 马万卓, 林鹏, 孙梦茹. 基于类噪声脉冲抽运的平坦超连续谱光源[J]. 应用光学, 2021, 42(4): 743-748. DOI: 10.5768/JAO202142.0405002
XIONG Hao, WANG Tianshu, JI Haiying, YUAN Quan, MA Wanzhuo, LIN Peng, SUN Mengru. Flat super-continuum spectrum light source based on noise-like pulse pumping[J]. Journal of Applied Optics, 2021, 42(4): 743-748. DOI: 10.5768/JAO202142.0405002
Citation: XIONG Hao, WANG Tianshu, JI Haiying, YUAN Quan, MA Wanzhuo, LIN Peng, SUN Mengru. Flat super-continuum spectrum light source based on noise-like pulse pumping[J]. Journal of Applied Optics, 2021, 42(4): 743-748. DOI: 10.5768/JAO202142.0405002

基于类噪声脉冲抽运的平坦超连续谱光源

Flat super-continuum spectrum light source based on noise-like pulse pumping

  • 摘要: 设计了一种由类噪声脉冲抽运的全光纤结构平坦超连续谱光源。在色散管理掺铒光纤激光器中通过调节腔内偏振态,在泵浦功率为450 mW时,实现了稳定的类噪声脉冲锁模,锁模脉冲的中心波长为1 600 nm,脉冲宽度为303 fs。在最大泵浦功率为1 W时,谐振腔直接输出功率为8.6 mW。较低的功率无法有效拓展超连续谱宽度,为此设计一种掺铒光纤放大器进行功率放大,放大器最大输出功率为338 mW,将功率放大后的类噪声脉冲耦合进高非线性光纤以产生超连续谱,超连续谱的20 dB光谱范围为1 530 nm~2 300 nm,在1 736 nm~2 134 nm范围内,光谱的平坦度优于0.5 dB。

     

    Abstract: A flat super-continuum spectrum light source of all-fiber structure based on noise-like pulse pumping was designed. In the dispersion-managed erbium-doped fiber laser, by adjusting the polarization state in the cavity, when the pump power was 450 mW, the stable noise-like pulse mode locking was achieved, the center wavelength was 1600 nm, and the pulse width was 303 fs. When the maximum pump power was 1 W, the direct output power of the resonator was 8.6 mW, and the lower power could not effectively expand the width of the super-continuum spectrum. Therefore, an erbium-doped fiber amplifier was designed for power amplification, and the maximum output power was 338 mW. The power-amplified noise-like pulse was coupled into the highly nonlinear fiber to obtain a super-continuum spectrum. The 20 dB spectral range of super-continuum spectrum is 1 530 nm ~ 2 300 nm, and in the range of 1 736 nm ~ 2 134 nm, the flatness of the spectrum is less than 0.5 dB.

     

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