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1. (WO2013159456) LASER MODULE STRUCTURE WITH OPTICAL FEEDBACK

Pub. No.:    WO/2013/159456    International Application No.:    PCT/CN2012/078484
Publication Date: Fri Nov 01 00:59:59 CET 2013 International Filing Date: Thu Jul 12 01:59:59 CEST 2012
IPC: H01S 3/131
H01S 5/0683
Applicants: QINGDAO LASENCE CO., LTD
青岛镭创光电技术有限公司
QIU, Gang
邱港
MA, Shijian
马世建
ZHENG, Yi
郑义
Inventors: QIU, Gang
邱港
MA, Shijian
马世建
ZHENG, Yi
郑义
Title: LASER MODULE STRUCTURE WITH OPTICAL FEEDBACK
Abstract:
A laser module structure with optical feedback comprises a laser emitter (1), a photoelectric detector (2), and an optical lens (3). The laser emitter (1) is capable of emitting laser beams with a certain divergence angle to the photoelectric detector (2), the photoelectric detector (2) converts part of the laser beams into electrical signals for feedback control, and the other laser beams are output through the optical lens (3). The laser module structure does not need an optical filter or a splitter and a support thereof, and is capable of simplifying a laser module structure, reducing the length and the volume of a laser module structure, decreasing costs, and improving an output ratio of the laser.