Abstract
Birefringence occurs when light passes through a magnetic fluid in a magnetic field. The phase difference caused by this phenomenon increases as the magnetic field is intensified. We have proposed an optical heterodyne method using Stabilized Transverse Zeeman Laser(STZL) for the detection of this phase difference caused by a magnetic field. Here analytical and experimental considerations are given to improve the conventional method. Higher sensitivity can be realized owing to the reflection type sensing used in an improved optical arrangement. An optical fiber is also proved to be applicable when the temperature is compensated for.
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