Zeeman multioscillator ring laser gyro insensitive to magnetic f

Details Zeeman multioscillator ring laser gyro insensitive to magnetic f Zeeman multioscillator ring laser gyro insensitive to magnetic f

1982-11-19

1984-10-02

Sikes, William L.

Coherent light generators

Having an applied magnetic field

372 29, 356350, H01S 300

Patent

active

044751990

ABSTRACT:
A Zeeman ring laser gyro is described which includes a laser medium of helium-neon consisting of dual isotopes of Ne.sup.20 and Ne.sup.22 in which 53.5% is Ne.sup.20 and 46.5% is Ne.sup.22 by volume. The laser also includes a reciprocal anisotropic dispersion element of quartz which optically splits right and left circularly polarized laser waves by 250 MHz. The portion of the laser cavity in which laser emission is stimulated is exposed to a colinear magnetic field of 30.sub.-20.sup.+10 gauss. The combined optimum parameters produce a laser gyro insensitive to changes in detuning frequencies and magnetic fields.

REFERENCES:
patent: 4213705 (1980-07-01), Sanders

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