Optical isolator, faraday rotator suitable for use in the same,

Details Optical isolator, faraday rotator suitable for use in the same, Optical isolator, faraday rotator suitable for use in the same,

1997-04-15

1998-06-02

Shafer, Ricky D.

Optical: systems and elements

Optical modulator

Light wave temporal modulation

359283, 359484, 372703, G02F 109, G02B 530

Patent

active

057609462

ABSTRACT:
An optical isolator has a low-profile construction. Two rod-like permanent magnets are on two sides of a Faraday element in parallel to an optical axis. The two permanent magnets are sandwiched and fixed between two ferromagnetic frames each having a light path hole therein. The ferromagnetic frames are each provided with a protrusion for guiding the magnetic flux generated by the permanent magnets to the Faraday element.

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patent: 5128956 (1992-07-01), Aoki et al.
patent: 5345329 (1994-09-01), Shirai et al.
A. Shibukawa, et al., "Compact Optical Isolator for Near-Infrared Radiation", Electronics Letters, vol. 13, No. 24, Nov. 24, 1977, pp. 721-722.

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