A new power meter concept for high energy lasers
Abstract
We describe a new concept for measurement of High Energy Laser (HEL) power. The technique is based upon the phenomenon of optoacoustic detection, which is a sensitive measurement of the sound waves created by absorption of a laser beam of known power with a sample of absorber material for the purpose of absorption coefficient determination. We propose that this process can be inverted to produce an absolute measurement of laser power by using a material for which the absorption coefficient at the laser frequency is sufficiently well known. We present a conceptual design and we suggest studies for future development of the concept.
- Publication:
-
Naval Research Lab. Report
- Pub Date:
- September 1981
- Bibcode:
- 1981nrl..reptR....U
- Keywords:
-
- Absorptivity;
- Acousto-Optics;
- High Power Lasers;
- Laser Outputs;
- Radiant Flux Density;
- Acoustic Measurement;
- Frequency Measurement;
- Sensitivity;
- Sound Waves;
- Lasers and Masers