量子电子学报 ›› 2019, Vol. 36 ›› Issue (4): 423-427.

• 激光技术与器件 • 上一篇    下一篇

1060 nm啁啾可调谐方波脉冲光纤激光器

黄家崑, 李淑杰,许立新   

  1. 中国科学技术大学光学与光学工程系, 安徽 合肥 230026
  • 收稿日期:2018-10-19 修回日期:2018-11-14 出版日期:2019-07-28 发布日期:2019-07-11
  • 通讯作者: 许立新 E-mail:xulixin@ustc.edu.cn
  • 作者简介:黄家崑(1989-),天津人,研究生,从事方波光纤激光器方面的研究。E-mail:tianfengshui@foxmail.com

Chirp adjustable 1060 nm square-wave pulse fiber laser

HUANG Jiakun, XU Lixin, LI Shujie   

  1. Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei 230026, China
  • Received:2018-10-19 Revised:2018-11-14 Published:2019-07-28 Online:2019-07-11
  • Contact: 许立新(1966-),福建人,博士,副教授,从事光纤通信与器件,光纤激光器教学与研究。 E-mail:xulixin@ustc.edu.cn

摘要: 出一种耗散孤子共振(DSR)脉冲与随机啁啾脉冲可调的方波光纤激光器,并搭建一种全光纤啁啾测量系统来研究其输出啁啾特性。实验结果表明,通过调节腔内偏振控制器可产生DSR脉冲和随机啁啾方波脉冲。DSR脉冲光谱具有陡峭的边沿且光谱中央存在尖峰,脉冲中央部分为较小的线性啁啾,边缘部分为较大的非线性啁啾。随机啁啾脉冲没有明确的啁啾分布,其光谱形状和光谱宽度几乎不随泵浦功率而变化。

关键词: 光纤激光器, 被动锁模, 啁啾, 方波脉冲

Abstract: The adjustable generation of dissipative soliton resonance (DSR) pulse and randomly chirped pulse in a square-wave fiber laser is proposed and demonstrated. A chirp measurement system is employed to study the output chirp characteristic. The result shows that the adjustable generation of DSR pulse and randomly chirped pulse can be achieved by adjusting the polarization controller inside cavity. The spectrum of DSR pulse has a pedestal with two steep edges and a narrow spike, and the corresponding pulse chirp is linear and low at the central part but nonlinear and large at the edges. The chirp of randomly chirped pulse is irregular, and the spectral shape and width hardly change with the pump power.

Key words: laser techniques, passively mode locking, chirp, square-wave pulse

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