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. 05, 2011
Filed:
Dec. 09, 2008
Jacob Khurgin, Baltimore, MD (US);
Isaac Shpantzer, Bethesda, MD (US);
Arkady Kaplan, Rockville, MD (US);
Pak Shing Cho, Gaithersburg, MD (US);
Jacob Khurgin, Baltimore, MD (US);
Isaac Shpantzer, Bethesda, MD (US);
Arkady Kaplan, Rockville, MD (US);
Pak Shing Cho, Gaithersburg, MD (US);
CeLight, Inc., Silver Spring, MD (US);
Abstract
A device for phase distortion compensation across an optical beam is provided. The device is a part of an optical receiver, which can be used in free space optical communications, remote sensing, optical imaging and others. 2inputs of the combiner interfere with each other via a system of tunable coupled waveguides. The phases in interleaved waveguides of the combiner are adjusted to maximize the resulting output signal. The combiner may be used for coherent communication in combination with a balanced 90° hybrid. Integrated solutions for the proposed device are provided.