Accession Number : ADD009882

Title :   Method of Providing Phase Biasing in a Continuous Single-Mode Fiber Ring Interferometer.

Descriptive Note : Patent,


Personal Author(s) : McLandrich,Matthew N

Report Date : 05 Oct 1982

Pagination or Media Count : 5

Abstract : A fiber interferometer gyro employing a continuous, integral looped single-mode fiber is coupled ot bidirectionally transmit clockwise and counterclockwise pulsed beams of light through a coiled continuous integral single-mode fiber from a laser to a pair of detectors. A suitably polarized piezoelectric cylinder is fitted about a portion of the continuous integral single-mode fiber to change the refractive index of that portion of the continuous integral single-mode fiber when appropriate electric fields are impressed across it. Changing the refractive index in only that portion of the continuous integral single-mode fiber results a selective phase biasing between the clockwise and counterclockwise traveling pulsed beams so that a rotation displacement of the interferometer gyro is more easily detected. (Author)

Descriptors :   *Patents, *Fiber optics, Optical interferometers, Beam splitting, Laser beams, Refractive index, Phase shift, Pulsed lasers

Subject Categories : Lasers and Masers
      Fiber Optics and Integrated Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE