VCSEL and VCSEL array having integrated microlenses for use in a semiconductor laser pumped solid state laser system
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United States of America Patent
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app pub date -
Aug 23, 2004
filing date -
Jul 12, 2000
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Abandoned
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Abstract
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 focussing 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.
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