Survey and review of laser pulse calorimeters

Technical Report · Mon Jan 18 04:00:00 EST 1971

OSTI ID:4325957

Schultz, P A

The energy of a laser pulse is normally monitored by an integrating priotodetector, which detects a small reflected portion of the beam. In order to give accuraie results, the photodetector system must be calibrated by some standard reference calorimeter. The calorimeter is usually placed in the path of the beam to absorb all of the energy in the pulse for higher accuracy. When the calibraiion of the photodetector is complete, the calorimeter is removed from the system. If the splitter-photodetector system is moved or the path of the laser beam is altered, the calibration procedure must be repeated. It is, therefore, of importance to the user that the c alorimeter has a fast response, gives easily interpreted outputs, is easy to insert in a system, and is not damaged by a high- power laser pulse. To assist in the decisions as to what type of calorimeter to use in a particular laser system, a review of the state of the art of laser calorimeters is presented. (WHK)

• Research Organization: California Univ., Livermore (USA). Lawrence Livermore Lab.
• NSA Number: NSA-29-029613
• OSTI ID: 4325957
• Report Number(s): UCID--15789
• Country of Publication: United States
• Language: English

Related Subjects

*CALORIMETERS-- REVIEWS
*LASERS-- CALIBRATION
LASER RADIATION
N46400* --Instrumentation--Miscellaneous Instruments