Accession Number:

ADD010693

Title:

Optical Gyroscope with Time Dependent Wavelength.

Descriptive Note:

Patent,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

1983-10-11

Pagination or Media Count:

8.0

Abstract:

A Sagnac rotation sensing interferometer disposed on a rotating platform for use as a gyroscope comprising a wound optical fiber light depth, a beam splitter for splitting a light beam into two beams directed to traverse the optical path in opposite directions, a light source circuit for generating a light beam which is switched between two wavelengths at a switching or modulation frequency substantially higher than the speed of change of the phase due to rotation, and a detector for extracting a signal from the recombined beam interference pattern at the wavelength modulation frequency, this signal being proportional to the phase shift caused by rotation. Author

Subject Categories:

  • Lasers and Masers
  • Fiber Optics and Integrated Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE