Measuring head for magnetometer and magnetometer incorporating s

Details Measuring head for magnetometer and magnetometer incorporating s Measuring head for magnetometer and magnetometer incorporating s

1980-12-03

1984-05-15

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Magnetometers

350377, G01R 33032, G02F 109

Patent

active

044490968

ABSTRACT:
The invention relates to magnetometers making it possible to measure a magnetic field by the Faraday effect in a thin YIG layer which involves taking a YIG layer which is sufficiently thick to permit a multimode transmission of the polarized light beam, as well as the entrance and exit of said beam from the edge of the layer. This device makes it possible to produce a magnetometer head, whose elements are integrated on a substrate and whose volume is approximately 1 cm.sup.3.

REFERENCES:
patent: 3512867 (1970-05-01), Pearson et al.
patent: 3756690 (1973-09-01), Borrelli et al.
patent: 3990777 (1976-11-01), Auracher
patent: 4112367 (1978-09-01), Hepner et al.
Shirasaki et al., "Bistable Magnetooptic Switch Using YIG Crystal . . . ", Conference on Lasers and Electro-Optics, Wash. D.C., Jun. 10-12, 1981, pp. 144, 145.
"Excitation of Hybrid Modes in Magnetooptic Waveguides", Applied Optics, vol. 13, No. 5, pp. 1001-1004, May 1974, by J. Warner; p. 1001, col. 2, line 13 and p. 1002, col. 1, line 15; P. 1003, col. 2, lines 21-35.

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