Accession Number : ADD014089

Title :   Electrically Controlled Integrated Optical Switch.

Descriptive Note : Patent, Filed 18 May 87, patented 24 May 88,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Soref, Richard A ; Lorenzo, Joseph P

Report Date : 24 May 1988

Pagination or Media Count : 10

Abstract : This Patent discloses an electrically controlled integrate d optical switch having a body made up entirely of crystalline silicon. More specifically, the body has a pair of channel waveguides intersecting in an X-like configuration forming therein an intersection crossover region. A first electrode is positioned on the intersection crossover region and a second electrode is positioned on the bottom of the body opposite the intersection crossover region. A controllable current/voltage source is electrically connected to the electrodes in order to alter the index of refraction of the intersection crossover region by carrier injection in order to selectively switch optical signals between diverging waveguides. (jhd)

Descriptors :   *CRYSTALS, *OPTICAL SWITCHING, *PATENTS, *SWITCHES, CHANNELS, INJECTION, OPTICS, REFRACTIVE INDEX, SILICON, OPTICAL WAVEGUIDES

Subject Categories : Electrooptical and Optoelectronic Devices

Distribution Statement : APPROVED FOR PUBLIC RELEASE