Light source degeradation detecting apparatus for laser device

Details Light source degeradation detecting apparatus for laser device Light source degeradation detecting apparatus for laser device

1986-03-13

1988-03-01

McGraw, Vincent P.

Optics: measuring and testing

Photometers

Photoelectric

324158D, 356121, G01J 118

Patent

active

047281880

ABSTRACT:
A light source degradation detecting apparatus for a laser device monitors drive currents and output laser beams. The degradation detecting apparatus includes drivers for supplying three drive signals to the laser, a photodiode for detecting laser outputs produced in response to the drive signals, a memory for storing measured values and the drive signals, and a discriminator for calculating ratio P from storage data (laser outputs W.sub.n, W.sub.n+1, and W.sub.n+2 produced in response to drive currents I.sub.n, I.sub.n+1, and I.sub.n+2) as follows:

REFERENCES:
patent: 4344173 (1982-08-01), Straus
patent: 4489477 (1984-12-01), Chik et al.

Affiliated with

Also associated with

Rating

Light source degeradation detecting apparatus for laser device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Light source degeradation detecting apparatus for laser device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light source degeradation detecting apparatus for laser device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-994571