1-DIMENSIONAL AND 2-DIMENSIONAL DISTRIBUTED FIBER-OPTIC STRAIN AND STRESS SENSORS BASED ON POLARIZATION MAINTAINING FIBER USING DISTRIBUTED POLARIZATION CROSSTALK ANALYZER AS AN INTERROGATOR

摘要

Techniques and devices for measuring polarization crosstalk in polarization maintaining fiber by placing the PM fiber in a 1-dimensional or 2-dimensional configuration for sensing stress or strain exerted on the PM fiber at different locations along the fiber with a high spatial sensing resolution

主权项

1. An optical fiber sensor device, comprising:
a sensor plate formed of a deformable or elastic material; a length of polarization maintaining (PM) fiber as a sensing element and engaged to the sensor plate at multiple engaging locations; an optical light source that produces probe light and is coupled to the PM fiber to deliver the probe light into the PM fiber; and a detector module coupled to receive probe light from the PM fiber and to measure the received probe light to determine a stress exerted on the sensor plate.