Vcsel and vcsel array having integrated microlenses for use in a semiconductor laser pumped solid state laser system
CA 2415696 A1 · Owner: Ghosh, Chuni L. · Inventors: Zhang, Kaiyan; Ghosh, Chuni L.; Zhang, Jiamin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
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 …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed June 13, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 13, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 13, 2023.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.