A non-intrusive beam power monitor for high power pulsed or continuous wave lasers
Patent Application
·
OSTI ID:10146899
A system and method for monitoring the output of a laser is provided in which the output of a photodiode disposed in the cavity of the laser is used to provide a correlated indication of the laser power. The photodiode is disposed out of the laser beam to view the extraneous light generated in the laser cavity whose intensity has been found to be a direct correlation of the laser beam output power level. Further, the system provides means for monitoring the phase of the laser output beam relative to a modulated control signal through the photodiode monitor.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- Assignee:
- Dept. of Energy
- Patent Number(s):
- PATENTS-US-A7706831
- Application Number:
- ON: DE93011995
- OSTI ID:
- 10146899
- Resource Relation:
- Other Information: PBD: 29 May 1991
- Country of Publication:
- United States
- Language:
- English
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