Citation
Abstract
The propagation path length variation due to. bending of optical fibers is analyzed in this article. Both the geometric effect and material stress effects are included in the analysis. These calculations put an upper limit on the expected phase shift in single mode fibers. The fractional change in propagation constant is given by 5B a\V where a is the core radius of the fiber (either single or multimode), and R is the bending radius of curvature. Moding effects in multimode fibers cause extraneous phase shifts of unusually high magnitude. This does not occur in single mode fibers, rendering them very insensitive to bending with a theoretical limit given by the above relation.
Details
- Volume
- 42-63
- Published
- June 15, 1981
- Pages
- 26–32
- File Size
- 461.7 KB