Fiber Ring Interferometer Noise Study.
Abstract
All the present fiber ring interferometer gyroscopes are sensitive to changes in environmental conditions. This noise background, which is equivalent to a fringe shift of about ten times the earth rotation rate, is caused to a large extent by the polarization scrambling in the fiber and by the relative motion of the interferometer components. One of the environmental changes is the variation of the birefringent due to small twists. A way of quantifying this effect on the state of polarization is to introduce controlled twists in a straight, relatively short (about one meter) fiber and determine the output polarization. Another environmental change is the variation of birefringence with temperature changes. An experiment to obtain quantitative results on these effects is described.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 31, 1980
- Accession Number
- ADA081935
Entities
People
- M. F. Berg
- Victor Vali