Article,

Fiber Faraday circulator or isolator

, and .
Opt. Lett., 6 (7): 322--323 (July 1981)
DOI: 10.1364/OL.6.000322

Abstract

We demonstrate a Faraday circulator or isolator that uses a silica-core, single-mode, birefringent fiber as the active medium and small permanent magnets for the magnetic field. Circulators were constructed for wavelengths of 632.8 and 830 nm using about 2 m of fiber. This is the first description to our knowledge of such potentially useful working devices made in birefringent fiber. Bandwidth and temperature dependence were also investigated.

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