Volume absorption laser energy meter for high energy laser by water absorption

Since the energy density of high energy laser can be extremely high and destructive, it is difficult to directly measure the laser energy with custom methods. A volume absorption method directly using water as absorption substance is introduced. In the energy meter, water is pumped into an absorptio...

Full description

Saved in:
Bibliographic Details
Published in:Applied physics. B, Lasers and optics Lasers and optics, 2013-03, Vol.110 (4), p.573-578
Main Authors: Wei, Ji Feng, Sun, Li Qun, Zhang, Kai
Format: Article
Language:English
Subjects:
Destructive testing
Deviation
Engineering
Holes
Lasers
Mathematical analysis
Measuring instruments
Meters
Norms
Optical Devices
Optics
Photonics
Physical Chemistry
Physics
Physics and Astronomy
Quantum Optics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Since the energy density of high energy laser can be extremely high and destructive, it is difficult to directly measure the laser energy with custom methods. A volume absorption method directly using water as absorption substance is introduced. In the energy meter, water is pumped into an absorption cavity sealed by a quartz window, and energy increment of water by laser is calculated. The new energy meter has excellent power and energy linearity and is almost not affected by power, energy and flow, its relative deviation to norm middle-power energy meter is 1.9 %, which infers that the new energy meter can measure higher laser energy and maintain higher precision as well.
ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-012-5294-0