Invention Grant
- Patent Title: Vertical external cavity surface emitting laser with pump beam reflector
- Patent Title (中): 垂直外腔表面发射激光器与泵浦反射器
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Application No.: US11448774Application Date: 2006-06-08
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Publication No.: US07856043B2Publication Date: 2010-12-21
- Inventor: Ki-sung Kim , Taek Kim
- Applicant: Ki-sung Kim , Taek Kim
- Applicant Address: KR
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR
- Agency: Cantor Colburn LLP
- Priority: KR10-2005-0107031 20051109
- Main IPC: H01S5/00
- IPC: H01S5/00

Abstract:
A vertical external cavity surface emitting laser (VECSEL) using end pumping in which a pumping beam is recycled using a pumping beam reflection layer to increase pumping beam absorption is provided. The VECSEL includes: an active layer for generating and emitting signal light; an external mirror that is separated from and faces a top surface of the active layer and transmits a first portion of the signal light and reflects a second portion of the signal light to the active layer; a first reflection layer contacting a lower surface of the active layer and reflecting the signal light to the external mirror; a pump laser for emitting the pumping beam toward the lower surface of the active layer to excite the active layer; and a second reflection layer contacting the top surface of the active layer and reflecting a portion of the pumping beam back to the active layer.
Public/Granted literature
- US20070104241A1 Vertical external cavity surface emitting laser with pump beam reflector Public/Granted day:2007-05-10
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