The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 2014
Filed:
May. 23, 2012
Joan Fong, San Marino, CA (US);
Wei Qian, Torrance, CA (US);
Dazeng Feng, El Monte, CA (US);
Mehdi Asghari, Pasadena, CA (US);
Joan Fong, San Marino, CA (US);
Wei Qian, Torrance, CA (US);
Dazeng Feng, El Monte, CA (US);
Mehdi Asghari, Pasadena, CA (US);
Kotura, Inc., Montery Park, CA (US);
Abstract
A method of forming an optical device includes generating a device precursor having a layer of a light-transmitting medium on a base. The method also includes forming an etch stop on the layer of light-transmitting medium. An active medium is grown on the etch stop and on the light-transmitting medium such that the light-transmitting medium is between the base and the grown active medium. The grown active medium is etched down to the etch stop so as to define a ridge in the active medium. The ridge of active medium defines a portion of a component waveguide that will guide a light signal through an active component on the device.