Patent · US Expired

Optical modulator

US5074631A · kind A · utility

84Cited by
7References
23Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 13, 1990
Grant dateDec 24, 1991
Priority date
Expiry dateMar 13, 2010

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02F2201/127
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A Mach-Zehnder interferometer type modulator, constructed of first and second optical waveguides, first and second electrodes cooperating with the same, and a driving voltage source, wherein a driving voltage source is constructed of first and second driving units which drive independently the first and second electrodes in accordance with a data input and wherein the first and second driving units apply first and second driving voltages, individually determined, to the first and second electrodes.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.