Accession Number : AD0163836

Title :   Laser Energy Monitor and Control.

Descriptive Note : Patent,

Corporate Author : OFFICE OF THE SECRETARY OF THE ARMY WASHINGTON D C

Personal Author(s) : Jacobs,Harold ; Kerecman,Albert J. ; Schumacher,James D.

Report Date : 12 SEP 1972

Pagination or Media Count : 5

Abstract : An energy monitor for lasers which includes a chamber filled with a gas and containing electrodes to which an adjustable source of voltage is applied to establish a glow discharge. The gas-filled chamber can be integral with the laser or can be separate from the laser. In either case, the laser beam passes between the electrodes without impinging upon the electrodes. The laser beam passes through the monitor with no energy loss and, in some cases, with energy gain. The current flowing in the gas discharge of the monitor is a function of the laser energy and this current, or the voltage resulting from this current, may be measured by a suitable measuring device, such as a calibrated meter or cathode ray oscilloscope.

Descriptors :   (*COHERENT RADIATION, MONITORS), (*MONITORS, *PATENTS), LASERS, POWER METERS, CONTROL SYSTEMS, GAIN

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE