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Title: Method and apparatus for monitoring the power of a laser beam

A method for monitoring the power of a laser beam in real time is disclosed. At least one optical fiber is placed through the laser beam, where a portion of light from the laser beam is coupled into the optical fiber. The optical fiber may be maintained in a stationary position or moved periodically over a cross section of the laser beam to couple light from each area traversed. Light reaching both fiber ends is monitored according to frequency and processed to determine the power of the laser beam. 6 figs.
Inventors:
;
Issue Date:
OSTI Identifier:
187074
Assignee:
Department of Energy, Washington, DC (United States) PTO; SCA: 426002; PA: EDB-96:038727; SN: 96001532296
Patent Number(s):
US 5,490,157/A/
Application Number:
PAN: 8-236,859
Contract Number:
W-7405-ENG-48
Resource Relation:
Other Information: PBD: 6 Feb 1996
Research Org:
University of California
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; LASER RADIATION; BEAM MONITORING; BEAM MONITORS; DESIGN; REAL TIME SYSTEMS; POSITIONING

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