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

• 来源期刊: 中国物理（英文版）
• 关键词: erbium-doped fibre laser high-birefringence fibre loop mirror applied stress
• 年，卷（期）: 2005,（5）
• 页码范围: 991-994
• 页数: 4页
• 语种: 英文

摘要

In this paper, a novel output-power controllable erbium-doped fibre laser, based on a strain-applied highbirefringence fibre loop mirror (HBFLM), was proposed and demonstrated. The refiectivity 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 refiectivity of the reflectors.