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US 5,471,489 AGranted
Magnetic means for suppression of lasing in certain wavelengths in a ring laser gyro
AssigneeHoneywell Inc.
InventorRodney H. Thorland
Life of this patent
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Abstract
A magnetic device attached to a ring laser gyro is used to prevent undesirable operating conditions in a ring laser gyro. Undesirable operating conditions occur when the ring laser gyro operates at specific wavelengths. The magnetic device used with the ring laser gyro creates a magnetic field that suppresses the operation at those specific wavelengths so that the undesirable operating conditions are removed.
Claims10
Means to control a lasing operation at specific wavelengths in a ring laser gyro which comprises:
- a ring laser gyro block;
- an interior gain bore within the ring laser gyro block having a plurality of sides and a plurality of ends and containing gain medium;
- a plurality of mirrors positioned at the ends of the interior gain bore to allow laser beams to reflect and perform the lasing operation;
- a plurality of electrodes positioned at the sides of the ring laser gyro block for generating counterpropagating laser beams within the interior gain bore in which a current flows through the electrodes to the interior gain bore to create gain legs;
- and
- magnetic device in proximity to the gain legs that suppresses the lasing operation at the specific wavelengths by creating a inhomogenous magnetic field.
3 more elements
Dependencies are inferred from the claim text.