Optical fiber interferometers with [3×3] directional couplers: Analysis
- 1 June 1981
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 52 (6), 3865-3872
- https://doi.org/10.1063/1.329853
Abstract
All‐guided wave interferometers using [3×3] directional couplers as beam splitters are analyzed in detail. The characteristics of such interferometers are compared with those of conventional interferometers using [2×2] beam splitters. It is shown that there are advantages in using [3×3] couplers instead of [2×2] couplers in the Mach‐Zehnder interferometric sensors and the Sagnac rotation sensors (gyroscopes).Keywords
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