Patent Number: 7,272,271

Title: Electro-optical integrated transmitter chip for arbitrary quadrature modulation of optical signals

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.

Inventors: Kaplan; Arkady (Rockville, MD), Achiam; Yaakov (Rockville, MD), Greenblatt; Arthur (Silver Spring, MD), Shpantzer; Isaac (Bethesda, MD), Cho; Pak Shing (Gaithersburg, MD), Tseytlin; Michael (Bethesda, MD), Salamon; Aviv (Washington, DC)

Assignee: Celight, Inc.

International Classification: G02F 1/035 (20060101); G02B 6/26 (20060101); G02B 6/42 (20060101)

Expiration Date: 2019-09-18 0:00:00