Device for frequency stabilizing an RF excitation laser

Patent · Tue Sep 15 04:00:00 EDT 1987

OSTI ID:5950652

Midavaine, T R; Ouhayoun, M M

A device for stabilizing the frequency of an RF excitation laser is described. It consists of: a resonant cavity having at least two mirrors filled with the laser gas and having an impedance; an RF radio-frequency alternating power generator for generating an excitation signal having an output impedance; electrodes for exciting the laser gas connected to the generator; means for causing the frequency of the laser to vary; means, connecting the generator and the electrodes, for matching the impedance of the laser cavity to the output impedance of the generator; and means responsive to an impedance mismatch signal reflected by the cavity, for controlling the causing means to vary the frequency through a servo-control circuit.

• Assignee: S.A.T. (Societe Anonyme de Telecommunications), Paris
• Patent Number(s): US 4694458
• OSTI ID: 5950652
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
CAVITY RESONATORS
CONTROL
CONTROL EQUIPMENT
ELECTRIC GENERATORS
ELECTRIC IMPEDANCE
ELECTRODES
ELECTRONIC EQUIPMENT
ENERGY-LEVEL TRANSITIONS
EQUIPMENT
EXCITATION
FREQUENCY CONTROL
FREQUENCY MODULATION
GAS LASERS
IMPEDANCE
LASER CAVITIES
LASERS
MIRRORS
MODULATION
OPERATION
RESONATORS
RF SYSTEMS
SERVOMECHANISMS
SIGNALS
STABILIZATION