Faraday rotator assembly

Details Faraday rotator assembly Faraday rotator assembly

1984-04-23

1986-09-02

Corbin, John K.

350355, 350 9613, G02F 109, G02B 610

Patent

active

046092579

ABSTRACT:
A Faraday rotator assembly includes a Faraday rotator of an optically transparent magnetic material; a device for applying a first magnetic field to the Faraday rotator, which field saturates the Faraday rotator with reversible magnetization; and a device for applying a second magnetic field to the Faraday rotator, the field having a direction different from that of the device for applying the first magnetic field to the Faraday rotator. The magnetization in the Faraday rotator is maintained in a saturation state by the second magnetic field at least during the reversal of the direction of the first magnetic field. The angle of the Faraday rotation of the Faraday rotator is reversed by reversing the direction of the first magnetic field.

REFERENCES:
patent: 3515457 (1970-06-01), Dillon, Jr.
patent: 4355864 (1982-10-01), Soref
Applied Optics, vol. 21, No. 11, Jun., New York (US), M. Shirasaki et al.: "Bistable Magnetooptic Switch for Multimode Optical Fiber", pp. 1943-1949, *Abstract, FIGS. 3-8.
Applied Optics, vol. 21, No. 23, Dec. 1982, New York (US) M. Shirasaki et al.: "Nonmechanical Optical Switch for Single-Mode Fibers", pp. 4229-4234.

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