US Patent 7359419 Vertical cavity surface emitting laser optimized for thermal sensitivity

Patent 7359419 was granted and assigned to Finisar on April, 2008 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

Finisar

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7359419

Date of Patent

April 15, 2008

Patent Application Number

11093240

Date Filed

March 29, 2005

Patent Citations Received

‌

US Patent 11876348 Trench process for dense VCSEL design

Patent Primary Examiner

‌

Dung T. Nguyen

Patent abstract

A vertical cavity surface emitting laser (VCSEL) optimized for use in self mixing applications. The VCSEL generally includes a bottom distributed Bragg reflector (DBR) mirror formed on a substrate. An active region is formed on the bottom mirror. A top DBR mirror is formed on the active region. A trench is formed in the at least the top mirror. An aperture is oxidized into the VCSEL. At least one of the bottom DBR mirror, the top DBR mirror, the metal contacts, the trench, and/or the aperture is optimized to make the VCSEL more thermally sensitive to changes in current through the VCSEL.

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