Vcsel and vcsel array having integrated microlenses for use...

H - Electricity – 01 – S

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H01S 5/00 (2006.01) H01S 3/06 (2006.01) H01S 5/42 (2006.01) H01S 3/00 (2006.01) H01S 3/0941 (2006.01) H01S 5/02 (2006.01) H01S 5/022 (2006.01) H01S 5/024 (2006.01) H01S 5/183 (2006.01)

Patent

CA 2415696

A vertical cavity surface emitting laser (VCSEL) device with improved power and beam characteristics. The VCSEL device contains one VCSEL or an array of VCSELs. Each VCSEL has a corresponding integrated microlens, and a heat sink is attached to the device side of the VCSEL device. The heat sink allows improved heat dissipation., and therefore provides improved power characteristics of the VCSEL device output laser beam. The microlens or microlens array allows easier and more compact focusing of the VCSEL device output laser beam. The VCSEL device can be used in a variety of optical systems, and its improved power and focusing characteristics provide a compact, low power, low cost laser system.

L'invention concerne un dispositif laser à cavité verticale et à émission par la surface (VCSEL) présentant des caractéristiques de puissance et de faisceau améliorées, Le dispositif VCSEL comprend un VCSEL ou un réseau de VCSEL. Chaque VCSEL possède une microlentille intégrée correspondante, et un dissipateur thermique est fixé sur le côté du dispositif VCSEL. Le dissipateur thermique assure une dissipation thermique améliorée, et confère donc au faisceau laser de sortie du dispositif VCSEL des caractéristiques de puissance améliorées. La microlentille ou le réseau de microlentilles permet une focalisation plus facile et plus compacte du faisceau laser de sortie du dispositif VCSEL. Le dispositif VCSEL peut être utilisé dans divers systèmes optiques, et ses caractéristiques de puissance et de focalisation améliorées en font un système à laser compact, économe en énergie et bon marché.

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