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:
Sep. 18, 2007
Filed:
Jul. 02, 2003
Arkady Kaplan, Rockville, MD (US);
Yaakov Achiam, Rockville, MD (US);
Arthur Greenblatt, Silver Spring, MD (US);
Isaac Shpantzer, Bethesda, MD (US);
Pak Shing Cho, Gaithersburg, MD (US);
Michael Tseytlin, Bethesda, MD (US);
Aviv Salamon, Washington, DC (US);
Arkady Kaplan, Rockville, MD (US);
Yaakov Achiam, Rockville, MD (US);
Arthur Greenblatt, Silver Spring, MD (US);
Isaac Shpantzer, Bethesda, MD (US);
Pak Shing Cho, Gaithersburg, MD (US);
Michael Tseytlin, Bethesda, MD (US);
Aviv Salamon, Washington, DC (US);
Celight, Inc., Silver Spring, MD (US);
Abstract
An optical device includes, a first Mach-Zehnder modulator that produces a first output, and a second Mach-Zehnder modulator which produces a second output. A splitter couples the first and second Mach-Zehnder modulators. A combiner combines the first and second outputs. A phase shifter is coupled to the first and second Mach-Zehnder modulators. The first Mach-Zehnder modulator, second Mach-Zehnder modulator, splitter, combiner and the phase shifter are each formed as part of a single chip made of electro-optical material. Such two similar optical device integrated together with polarization combiner provide a two-polarization performance.