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Chinese Physics, 2005, Vol. 14(5): 991-994    DOI: 10.1088/1009-1963/14/5/023
CLASSICAL AREAS OF PHENOMENOLOGY Prev   Next  

Output-power controllable erbium-doped fibre laser via a high-birefringence fibre loop mirror with applied stress

Liu Yan-Ge (刘艳格), Feng Xin-Huan (冯新焕), Li Yao (李尧), Yuan Shu-Zhong (袁树忠), Zhang Wei-Gang (张伟刚), Kai Gui-Yun (开桂云), Dong Xiao-Yi (董孝义)
Institute of Modern Optics, Nankai University, Tianjin 300071, China
Abstract  In this paper, a novel output-power controllable erbium-doped fibre laser, based on a strain-applied high-birefringence fibre loop mirror (HBFLM), was proposed and demonstrated. The reflectivity of HBFLM could be changed from about 0.8% to 100% because the fibre length and birefringence of the high-birefringence fibre (HBF) were altered via bonding a part of HBF to the centric surface of an uniform-strength cantilever beam and applying different stress at end of the beam. As a result, the laser output power could be adjusted and controlled in a dynamic range of more than 33 dB. The laser is not only a controllable and adjustable output-power laser with simple configuration and low cost, but also can be used for optimizing the output characteristics of a linear cavity laser via easily finding out the optimized reflectivity of the reflectors.
Keywords:  erbium-doped fibre laser      high-birefringence fibre loop mirror      applied stress.  
Received:  13 September 2004      Revised:  14 January 2005      Accepted manuscript online: 
PACS:  4260  
  4281  
  4255N  
Fund: Supported by the National Key Basic Research and Development Programme of China under Grant No. 2003CB314906 , the National High Technology Development Programme of China under Grant No. 2003AA312100 , the National Natural Science Foundation of China unde

Cite this article: 

Liu Yan-Ge (刘艳格), Feng Xin-Huan (冯新焕), Li Yao (李尧), Yuan Shu-Zhong (袁树忠), Zhang Wei-Gang (张伟刚), Kai Gui-Yun (开桂云), Dong Xiao-Yi (董孝义) Output-power controllable erbium-doped fibre laser via a high-birefringence fibre loop mirror with applied stress 2005 Chinese Physics 14 991

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