Accession Number:

ADA243384

Title:

The Analysis of a Stabilized 1.5 Mach-Zehnder Interferometric Sensor with Enhanced Sensitivity and Common-Mode Compensation

Descriptive Note:

Doctoral thesis,

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH

Personal Author(s):

Report Date:

1991-08-01

Pagination or Media Count:

113.0

Abstract:

The design and construction of an active stabilization controller and its interface to an interferometric fiber optic sensor--the enhanced sensitivity, common-mode compensated 1.5 Mach-Zehnder is reported in this dissertation. The feasibility of employing this active stabilization circuit to maintain the operation of an enhanced sensitivity, common-mode compensated 1.5 Mach-Zehnder interferometer over the narrow operating range required for common- mode compensation and high sensitivity was demonstrated. Thus, a suitable means to minimize, even eliminate, the effects of environmental disturbances common-mode and random and to achieve maximum sensitivity and linearity in the presence of differential phase modulation was proven. This research shows that the incorporation of a controller into the fiber optic sensor can improve the performance of the sensor with electro-optic feedback over two orders of magnitude 100 times more than without electro-optic feedback. More importantly, the fiber optic sensor exhibited nearly a full order of magnitude 10 times improvements in sensitivity beyond the state-of-the-art performance reported to date for the conventional Mach-Zehnder optical circuit.

Subject Categories:

  • Fiber Optics and Integrated Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE