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:
Apr. 02, 2013
Filed:
Jul. 28, 2010
Dazeng Feng, El Monte, CA (US);
Mehdi Asghari, Pasadena, CA (US);
Bradley Jonathan Luff, San Marino, CA (US);
Roshanak Shafiiha, Pasadena, CA (US);
Dazeng Feng, El Monte, CA (US);
Mehdi Asghari, Pasadena, CA (US);
Bradley Jonathan Luff, San Marino, CA (US);
Roshanak Shafiiha, Pasadena, CA (US);
Kotura, Inc., Monterey Park, CA (US);
Abstract
The device includes a waveguide on a base. A light-absorbing portion of the waveguide receives a light signal, absorbs a portion of the light signal and guides a transmitted portion of the light signal to the output portion of the waveguide. A light-absorbing portion of the waveguide is partially defined by a light-absorbing medium that has lateral sides that each extends between a top side and a bottom side of the light-absorbing medium. The device also includes a monitor absorption of the absorbed portion of the light signal. The monitor includes field sources that are each configured to serve as a source of an electrical field in the light-absorbing medium. The field sources each contacts one of the lateral sides of the light-absorbing medium.