Invention Grant
- Patent Title: Surface emitting laser incorporating third reflector
- Patent Title (中): 表面发射激光器并入第三反射器
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Application No.: US13427105Application Date: 2012-03-22
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Publication No.: US09112331B2Publication Date: 2015-08-18
- Inventor: John E. Northrup , Thomas Wunderer , Noble M. Johnson
- Applicant: John E. Northrup , Thomas Wunderer , Noble M. Johnson
- Applicant Address: US CA Palo Alto
- Assignee: Palo Alto Research Center Incorporated
- Current Assignee: Palo Alto Research Center Incorporated
- Current Assignee Address: US CA Palo Alto
- Agency: Hollingsworth Davis, LLC
- Main IPC: H01S5/00
- IPC: H01S5/00 ; H01S3/09 ; H01S3/091 ; H01S3/08 ; H01S5/183 ; H01S5/14 ; H01S5/343 ; B82Y20/00 ; H01S3/109 ; H01S5/04 ; H01S5/32

Abstract:
Surface emitting laser structures that include a partially reflecting element disposed in the laser optical cavity are disclosed. A vertical external cavity surface emitting laser (VECSEL) structure includes a pump source configured to emit radiation at a pump wavelength, λpump, an external out-coupling reflector, a distributed Bragg reflector (DBR,) and an active region arranged between the DBR and the out-coupling reflector. The active region is configured to emit radiation at a lasing wavelength, λlase. The VECSEL structure also includes partially reflecting element (PRE) arranged between the gain element and the external out-coupling reflector. The PRE has reflectivity of between about 30% and about 70% for the radiation at the lasing wavelength and reflectivity of between about 30% and about 70% for the radiation at the pump wavelength.
Public/Granted literature
- US20130343420A1 SURFACE EMITTING LASER INCORPORATING THIRD REFLECTOR Public/Granted day:2013-12-26
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