The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 02, 1984
Filed:
Nov. 19, 1982
Virgil E Sanders, Newbury Park, CA (US);
Thomas J Hutchings, Thousand Oaks, CA (US);
Litton Systems, Inc., Beverly Hills, CA (US);
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.