VISIBILITY OF WHITE-LIGHT INTERFERENCE PATTERNS FOR CHAIN-OF-COHERENCE MULTIPLEXED SENSORS BASED ON HIGHLY BIREFRINGENT FIBERS

The behavior of a chain of sensors based on highly birefringent fibers and operating in two multiplexing configurations was studied as a fun ction of alignment. The analytical relations between alignment at each splice in the chain and the visibility of the interference pattern as sociated with each sensor were found. These relations make it possible to determine alignment that ensures the desired visibility distributi ons for sensors along the cascade. In the experimental part of this wo rk, the derived formulas were verified for a few specific chains compo sed of a limited number of multiplexed sensors.