Abstract

A discriminant to frequency stabilize a gas laser has been obtained from a discharge tube in which the gain profile is split by an ac magnetic field. By superimposing a do magnetic field, the discriminant can be centered at any point on the gain profile. By employing feedback techniques, the center of the discriminant can be used to track a laser frequency; the magnitude of the do magnetic field determines the displacement of the laser frequency from the gain maximum.

© 1967 Optical Society of America

Frequency stability of a Zeeman-stabilized laser

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The Detectivity of Electron Beam Scanning Types of Image Tubes

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Phase control of a Zeeman-split He–Ne gas laser by variation of the gaseous discharge voltage

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Development of a Ring Laser for Polarimetric Measurements

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Photomultiplier Tubes for Satellite Instrumentation

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