论文信息 - Fiber Bragg grating as an optical filter tuned by a magnetic field.

Fiber Bragg grating as an optical filter tuned by a magnetic field.

We describe a novel tunable optical filter for use in optical-frequency-domain multiplexed communication systems. The shift in the Bragg condition of a fiber Bragg grating as a result of magnetically induced circular birefringence is calculated with coupled-mode theory on the basis of circular states of polarization, and the values obtained for silica and terbium-doped optical fibers are compared.

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