J4 ›› 2013, Vol. 30 ›› Issue (3): 288-292.

• 激光技术与器件 • 上一篇    下一篇

一种基于FBG宽调谐的复合环形腔单纵模光纤激光器

田允允 冯素娟 马龑 毛庆和   

  1. 1 中国科学院安徽光学精密机械研究所, 安徽省光子器件与材料重点实验室, 安徽 合肥 230031; 2 中国科学技术大学, 安徽 合肥 230022
  • 收稿日期:2012-04-30 修回日期:2012-05-07 出版日期:2013-05-28 发布日期:2013-05-06
  • 通讯作者: 毛庆和(1963-)研究员,博士生导师,主要从事纤维光学、激光物理与激光器件等方面的研究。 E-mail:mqinghe@aiofm.ac.cn
  • 作者简介:田允允(1989-),女,硕士生,主要从事激光技术方面的研究。Email:fiber_optics@aiofm.ac.cn
  • 基金资助:
    国家高技术研究发展计划(863计划)资助项目(2011AA030203),安徽省重点实验室建设项目和中科院创新基金(CXJJ-10-M54)资助项目

A wide-tunable single-longitudinal-mode fiber laser based on compound ring cavity and tunable fiber Bragg grating

TIAN Yun-yun, FENG Su-juan,MA Yan, MAO Qing-he   

  1. 1 Anhui Provincial Key Lab of Photonics Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, Anhui 230031, China; 2 University of Science and Technology of China, Hefei 230022, China
  • Received:2012-04-30 Revised:2012-05-07 Published:2013-05-28 Online:2013-05-06

摘要: 报道了一种宽调谐单纵模光纤激光器。该光纤激光器采用环行器确保腔内激光的单向传输,可以有效消除空间烧孔效应;采用复合腔的Vernier效应选取单个纵模;利用未泵浦掺杂光纤的可饱和吸收效应,有效抑制光纤激光器的跳模现象;同时,利用自行研制的光纤光栅调谐装置,调谐激光器振荡波长。测试结果表明,该单纵模光纤激光器输出激光的线宽为0.7KHz,功率为10mW,波长调谐范围为20nm,且调谐过程中始终保持单纵模特性。

关键词: 激光技术, 单纵模, 复合腔, 光纤布拉格光栅

Abstract: A wide-tunable single-longitudinal-mode fiber laser based on ring cavity structure is presented in this article. In our design, the unidirectional propagation of light controlled by the circulator in the ring cavity can eliminate the spatial hole burning effect effectively. For realizing single-longitudinal-mode operation in fiber laser, the compound cavities designed based on Vernier effect are adopted. For suppressing the mode hopping, the saturable absorber effect of an unpumped doped fiber is considered. Meanwhile, the fiber Bragg grating filter with a widely tuning range was used to select oscillation wavelength. With these configurations, a stable single-longitudinal-mode erbium-doped fiber laser with 10mW output power, 0.7 kHz linewidth and 20 nm tuning range is achieved.

Key words: laser techniques, single-longitudinal-mode, compound cavity, fiber bragg grating

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