Accession Number : ADD009157

Title :   Polarization-Independent Optical Switches/Modulators.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Giallorenzi,Thomas G ; Steinberg,Richard A

Report Date : 29 Sep 1981

Pagination or Media Count : 17

Abstract : Optical channel waveguide switches/modulators having polarization-independent operation are disclosed. Electrodes are disposed in proximity to the waveguide channels to provide an electric field that is primarily horizontally directed in at least one channel and an electric field that is primarily vertically directed in at least one channel. Since the different electric-field orientations electrooptically induce different changes in the index of refraction for waves of different polarization in the guides, this permits improved electrooptic control over both TM-like and TE-like modes. Embodiments of both modal interference switches/modulators and branching waveguide switches/modulators are disclosed.

Descriptors :   *Patents, *Optical switching, *Optical waveguides, Modulators, Polarization, Electrooptics, Electronic switches

Subject Categories : Electrooptical and Optoelectronic Devices
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE