Phase Locking of Laser Diode Array by Using an Off-Axis External Talbot Cavity

被引：4
|
作者：
Su Zhou-Ping [1 ]
Ji Zhi-Cheng [2 ]
Zhu Zhuo-Wei [1 ]
Que Li-Zhi [1 ]
Zhu Yun [1 ]
机构：
[1] Jiangnan Univ, Sch Sci, Wuxi 214122, Peoples R China
[2] Jiangnan Univ, Sch Internet Things Engn, Wuxi 214122, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2012年 / 29卷 / 05期
基金：
中国国家自然科学基金;
关键词：
COHERENT ADDITION; BEAM QUALITY; POWER; IMPROVEMENT; FEEDBACK; OUTPUT;
D O I：
10.1088/0256-307X/29/5/054210
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Phase locking of a laser diode array is demonstrated experimentally by using an off-axis external Talbot cavity with a feedback plane mirror. Due to good spatial mode discrimination, the cavity does not need a spatial filter. By employing the cavity, a clear and stable far-field interference pattern can be observed when the driver current is less than 14 A. In addition, the spectral line width can be reduced to 0.8 nm. The slope efficiency of the phase-locked laser diode array is about 0.62 W/A.
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收藏
页数：3
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