US Patent 7742515 Vertical cavity surface emitting laser optimized for optical sensitivity

Patent 7742515 was granted and assigned to Finisar on June, 2010 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

7742515

Date of Patent

June 22, 2010

Patent Application Number

11118159

Date Filed

April 29, 2005

Patent Primary Examiner

‌

Minsun Harvey

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 optically sensitive to light reflected back into the VCSEL.

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