Accession Number : ADD007816

Title :   Pulsed Laser Beam Intensity Monitor.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Jones,Robert W ; Cason,Charles M

Report Date : 07 Jul 1980

Pagination or Media Count : 8

Abstract : A pulsed laser beam intensity monitor measures the peak power within a selectable cross section of a test laser beam and measures integrated energy of the beam during the pulse period of a test laser. A continuous wave laser and a pulsed ruby laser are coaxially arranged for simultaneously transmitting optical output energy through a crystal flat during the time a test laser pulse is transmitted through the flat. Due to stress birefringence in the crystal, the ruby laser pulse transmitted through the flat is recorded and analysed to provide peak power information about the test laser output pulse, and the continuous wave laser output reflected from the crystal flat provides a measurement of energy during the test laser pulse. (Author)

Descriptors :   *Patent applications, *Pulsed lasers, *Radiant intensity, *Monitors, Ruby lasers, Peak power, Birefringence, Continuous wave lasers, Carbon dioxide lasers, Cross sections, Doping, Crystal detectors, Transparence, Frequency, Reflection

Subject Categories : Lasers and Masers
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE