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Title:
OUTPUT DETECTOR FOR LASER OSCILLATOR
Document Type and Number:
Japanese Patent JPH053353
Kind Code:
A
Abstract:

PURPOSE: To obtain a small-sized output detector for laser oscillators which can simultaneously detect the oscillation output of a laser oscillator and position of laser light and has a simple structure as a sensor.

CONSTITUTION: A sensor 3 for detecting output composed of four elements 3A-3D symmetrically arranged with respect to the axis of a partially transmissive mirror 2 faced to an output mirror 1 is provided in parallel with the mirror 2 on the rear side of the mirror 2. An adder/amplifier circuit 4 calculates and amplifies the sum of the output voltages Va-Vd of the elements 3A-3D and displays the amplified sum on a power meter 8 and a differential amplifier circuit 5 respectively amplifies the differences between the output voltages Va and Vb of the elements 3A and 3B arranged in the Y-axis direction and between the output voltages Vc and Vd of the elements 3C and 3D arranged in the X-axis direction and displays the position of laser light on a position meter 9.


Inventors:
MATSUURA SHIGERU
Application Number:
JP18022891A
Publication Date:
January 08, 1993
Filing Date:
June 25, 1991
Export Citation:
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Assignee:
OKUMA MACHINERY WORKS LTD
AMADA CO LTD
International Classes:
G01J1/02; B41J2/44; G02B26/10; G03G15/04; H01S3/00; (IPC1-7): G01J1/02; G02B26/10; G03G15/04; H01S3/00
Attorney, Agent or Firm:
Yumi Kato



 
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