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Circuit Stops Prelasing In A Q-Switched LaserProtective shutdown circuit stops prelasing in Q-switched laser operating at pulse-repetition rate of about 10 Hz. During normal operation, Q-switch prevents emission of light from laser cavity during application of Q-switch-trigger pulse. When circuit detects prelasing, it triggers relay turning off laser power supply. Circuit integrated into almost any Q-switched-laser system, provided one gains access to laser light, Q-switch-trigger pulse, and safety-interlock line of laser power supply.
Document ID
19950065271
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Lockard, George E. (NASA Langley Research Center, Hampton, VA.)
Date Acquired
August 17, 2013
Publication Date
March 1, 1995
Publication Information
Publication: NASA Tech Briefs
Volume: 19
Issue: 3
ISSN: 0145-319X
Subject Category
Electronic Systems
Report/Patent Number
LAR-14790
Accession Number
95B10112
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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