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:
Jul. 02, 2013
Filed:
Apr. 28, 2010
Po Dong, Arcadia, CA (US);
Dazeng Feng, Arcadia, CA (US);
Ning-ning Feng, Arcadia, CA (US);
Dawei Zheng, Arcadia, CA (US);
Mehdi Asghari, San Marino, CA (US);
Po Dong, Arcadia, CA (US);
Dazeng Feng, Arcadia, CA (US);
Ning-Ning Feng, Arcadia, CA (US);
Dawei Zheng, Arcadia, CA (US);
Mehdi Asghari, San Marino, CA (US);
Kotura, Inc., Monterey Park, CA (US);
Abstract
An optical device includes a light-transmitting medium positioned on a base. The light-transmitting medium defines a waveguide. The optical device also includes a light sensor. The light sensor includes a light-absorbing medium positioned on the base. A portion of the waveguide ends at a facet such that a first portion of a light signal being guided by the wavegide passes through the facet and a second portion of the light signal bypasses the facet and remains in the light-transmitting medium. The light-absorbing medium is positioned on the light-transmitting medium such that the light-transmitting medium is between the light-absorbing medium and the base. Additionally, the light-absorbing medium is positioned on the light-transmitting medium such that the light-absorbing medium receives the first portion of the light signal that passes through the facet. Further, the light-absorbing medium is configured such that the second portion of the light signal is coupled into the light-absorbing medium from the light-transmitting medium.