Interferometer device for measurement of magnetic fields and ele

Details Interferometer device for measurement of magnetic fields and ele Interferometer device for measurement of magnetic fields and ele

1985-05-14

1985-12-24

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250227, 324 96, 356368, G02F 101

Patent

active

045608679

ABSTRACT:
The invention relates to a device for measuring a magnetic field, comprising a source of rectilinearly polarized light. A magnetooptical medium is situated in the path of the beam, this medium being followed by a mirror refecting this beam. This medium is a medium of which the intrinsic propagation modes are polarized in right-hand and left-hand directions, and which retains the circular polarization. An element acting as a separator by polarization is situated between the source and the medium, a detector device being coupled to the same.

REFERENCES:
patent: 2341422 (1944-02-01), Bubb
patent: 3581202 (1971-05-01), Pelenc et al.
patent: 4356448 (1982-10-01), Brogardh et al.
patent: 4363061 (1982-12-01), Vaerewyck et al.
patent: 4412720 (1983-11-01), Costa
patent: 4443698 (1984-04-01), Schiffner
Scheider et al., "Low-Birefringence Single-Mode Optical Fibers", Oct. 1978, Applied Optics, pp. 3035-3037.

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