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Patent Searching and Data


Title:
PULSE LASER DEVICE
Document Type and Number:
Japanese Patent JPH08316558
Kind Code:
A
Abstract:

PURPOSE: To eliminate the influence of a giant pulse by a method wherein a transition point of time at which a laser output timing signal is shifted from off-state to on-state is delayed by a prescribed time required for outputting a first laser pulse, and a pulse laser is measured for an average output while the laser output timing signal is 'on'.

CONSTITUTION: A delay circuit 10 operates to delay a transition point of time at which a laser output timing signal ST is shifted from off-state to on-state is delayed by a prescribed time required for outputting a first laser pulse (giant pulse). A giant pulse eliminating circuit 12 operates to output only laser pulses out of Q switch laser pulses detected by a photodetector only while the laser output timing signal ST inputted through the delay circuit 10 is 'on'. Therefore, the influence of a first giant laser pulse can be eliminated by the giant pulse eliminating circuit 12.


Inventors:
CHIBA TEIICHIRO
Application Number:
JP12163695A
Publication Date:
November 29, 1996
Filing Date:
May 19, 1995
Export Citation:
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Assignee:
KOMATSU MFG CO LTD
International Classes:
H01S3/11; G01J1/42; G01J11/00; H01S3/127; (IPC1-7): H01S3/11; H01S3/127
Attorney, Agent or Firm:
木村 高久