| 摘要 |
A method for fabricating a transformer of linearly polarized light to elliptically polarized light is disclosed. The method involves twisting a birefringent fiber through angles that depend on the desired final polarization. This technique obviates the need to splice fibers, as in commo n practice. The polarization can be fine-tuned by heating the fiber to cause t he core and the cladding of the fiber to interdiffuse. Also disclosed is a current sensor using the transformer of polarized light which is based on th e Faraday Effect in a Sagnac interferometer.
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