Mode-hop-free operation of a distributed Bragg reflector diode laser in an external fiber-cavity configuration

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• 作者：Yuji Kawai ; Utako Tanaka ; Kazuhiro Hayasaka ; Shinji Urabe
• 刊名：Applied Physics B: Lasers and Optics
• 出版年：2015
• 出版时间：November 2015
• 年：2015
• 卷：121
• 期：2
• 页码：213-219
• 全文大小：929 KB
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• 作者单位：Yuji Kawai (1)
  Utako Tanaka (1)
  Kazuhiro Hayasaka (2)
  Shinji Urabe (1)
  
  1. Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka, 560-8531, Japan
  2. National Institute of Information and Communications Technology, 588-2 Iwaoka, Iwaoka-cho, Nishi-ku, Kobe, 651-2492, Japan
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Electromagnetism, Optics and Lasers
  Physical Chemistry
  Laser Technology and Physics and Photonics
  Quantum Optics, Quantum Electronics and Nonlinear Optics
  Optical Spectroscopy and Ultrafast Optics
  Physics and Applied Physics in Engineering
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1432-0649

文摘

We report on the mode-hop-free operation of a distributed Bragg reflector (DBR) diode laser with an external cavity consisting of an optical fiber. A simple method is implemented, using feedback to the DBR drive current, to suppress mode hops due to frequency mismatch between the intrinsic mode of the DBR laser and the resonant mode of the fiber cavity. The error signal is derived from the change in the output power of the whole system. The feedback allows long-term operation over hours without mode hops, as well as continuous frequency scans of about 1 GHz with a reduced short-term linewidth.