Zeeman multioscillator ring laser gyro insensitive to magnetic fields and detuning frequencies

Patent · Tue Oct 02 04:00:00 EDT 1984

OSTI ID:5908762

Sanders, V E; Hutchings, T J

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 -//sub 20//sup +10/ gauss. The combined optimum parameters produce a laser gyro insensitive to changes in detuning frequencies and magnetic fields.

• Assignee: Litton Systems Inc.
• Patent Number(s): US 4475199
• OSTI ID: 5908762
• Country of Publication: United States
• Language: English

Related Subjects

440300* -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
BEAM SPLITTING
CHALCOGENIDES
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
EMISSION SPECTRA
EQUIPMENT
EVEN-EVEN NUCLEI
FREQUENCY DEPENDENCE
FREQUENCY RANGE
GAS LASERS
GYROSCOPES
HELIUM-NEON LASERS
ISOTOPES
LASER CAVITIES
LASERS
LIGHT NUCLEI
MAGNETIC FIELDS
MHZ RANGE
MHZ RANGE 100-1000
MINERALS
NEON 20
NEON 22
NEON ISOTOPES
NUCLEI
OPTICAL PROPERTIES
OSCILLATORS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE
PHYSICAL PROPERTIES
POWER SUPPLIES
QUARTZ
RADIATIONS
RING LASERS
SILICON COMPOUNDS
SILICON OXIDES
SPECTRA
STABLE ISOTOPES
TUNING
VISIBLE RADIATION
WAVE PROPAGATION
ZEEMAN EFFECT