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.
Received: 13 September 2004
Revised: 14 January 2005
Accepted manuscript online:
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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