Linearly polarized all-fiber laser using a short section of highly polarizing microstructured fiber
Linearly polarized all-fiber laser using a short section of highly polarizing microstructured fiber
复制标题
DOI：
10.1002/lapl.200710100
复制
发表时间：
2008-02
影响因子：
1.7
通讯作者：
M. Delgado-Pinar;A. Díez;J. Cruz;M. Andrés
中科院分区：
文献类型：
--
作者：
M. Delgado-Pinar;A. Díez;J. Cruz;M. Andrés
本文介绍了一种线偏振全光纤铒激光器。偏振选择元件由单模偏振微结构光纤组成，置于激光腔内。微结构纤维显示出规则的气孔晶格，其中靠近芯的四个孔被放大。该光纤在1550 nm左右显示出16 dB/m的极化相关损耗。激光腔对每一个偏振都有不同的损耗，因此获得了高偏振发射。发射功率的极化比大于20 dB。
A linearly polarized all-fiber erbium laser is presented in this work. The polarization selective element consists on a piece of a single-mode, polarizing microstructured fiber, which is placed within the laser cavity. The microstructured fiber shows a regular lattice of air-holes, in which four holes next to the core were enlarged. This fiber shows a polarization dependent loss of 16 dB/m around 1550 nm. The laser cavity presents different losses for each polarization and, as a consequence, a highly polarized emission is obtained. The polarization ratio of the emitted power was in excess of 20 dB.