Optical fiber interferometers with [3×3] directional couplers: Analysis

Optical fiber interferometers with [3×3] directional couplers: Analysis

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 ins...

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Veröffentlicht in:Journal of applied physics 1981-01, Vol.52 (6), p.3865-3872
1. Verfasser: Sheem, Sang K.
Format: Artikel
Sprache:eng
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Zusammenfassung: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).
ISSN:0021-8979
1089-7550
DOI:10.1063/1.329853