Utilization of Birefringent Fiber as Sensor of Temperature Field Disturbance

Abstract

The paper deals with utilization of induced birefringence sensitivity to temperature field in birefringent optical fibers. The propagating optical wave and optical fibers are described by means of coherency and Jones matrices, which are decomposed into unitary matrix and spin matrices. The development of polarization caused by temperature field is interpreted on the Poincare sphere by means of MATLAB® environment. The temperature sensitivity of Panda and bow-tie fiber has been measured for circular polarization excitation. Curves of intensity fluctuation caused by the temperature dependence are presented.

Keywords

• Induced birefringence
• temperature dependence
• birefringence sensitivity
• beat length
• Jones matrix
• coherency matrix
• spin matrices
• Poincare sphere
• temperature sensor.