Multi-wavelength laser beam detector with refractive element

Details Multi-wavelength laser beam detector with refractive element Multi-wavelength laser beam detector with refractive element

1996-02-09

1997-08-26

Healy, Brian

Coherent light generators

Particular beam control device

Producing plural wavelength output

372 9, 372 20, 372109, 359837, H01S 310, G02B 504

Patent

active

056617372

ABSTRACT:
A detector system for providing a plurality of output beams for monitoring the output beam of a laser system. The detector system includes a refractive element having a pair of opposing spaced-apart faces. The laser beam enters the refractive element where it undergoes multiple internal reflections off of the faces. A portion of the beam is transmitted out of the refractive element at each of the reflections to form a plurality of increasingly attenuated output beams having different power intensities from each other. A plurality of detectors are positioned for measuring the different beam characteristics of the plurality of attenuated output beams, which correspond to the beam characteristics of the laser output beam.

REFERENCES:
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patent: 4711526 (1987-12-01), Hennings et al.
patent: 4824200 (1989-04-01), Isono et al.
patent: 5002371 (1991-03-01), Wright
patent: 5121404 (1992-06-01), Aoshima et al.
patent: 5280536 (1994-01-01), Dumond et al.
patent: 5558667 (1996-09-01), Yarborough et al.

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