Circular polarization emission from an external cavity diode laser

被引：13
|
作者：
Zhang, Fan [1 ]
Xu, Jian [1 ]
Lakhtakia, Akhlesh [1 ]
Zhu, Ting [1 ]
Pursel, Sean M. [1 ]
Horn, Mark W. [1 ]
机构：
[1] Penn State Univ, Dept Engn Sci & Mech, University Pk, PA 16802 USA
来源：
APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 11期
关键词：
D O I：
10.1063/1.2896306
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
An external cavity diode laser (ECDL) containing a chiral sculptured-thin-film (STF) mirror for very pure circularly polarized (CP) emission was fabricated and its single-mode, left-handed CP lasing performance was observed. The extinction ratio of the CP output was found to increase rapidly near the threshold of the injection current for the laser diode. The Jones-matrix representation of a chiral STF mirror was used to calculate the eigenstates in the external cavity of the ECDL with the transfer matrix method, the results suggesting that the only resonant mode in the external cavity of the laser is CP with the same handedness as the structural handedness of the chiral STF mirror. (C) 2008 American Institute of Physics.
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页数：3
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