Laser feedback control circuit and method

Details Laser feedback control circuit and method Laser feedback control circuit and method

1991-05-31

1993-01-05

Scott, Jr., Leon

Coherent light generators

Particular component circuitry

Optical pumping

372 31, H01S 300

Patent

active

051777550

ABSTRACT:
A feedback circuit, comprising: means for producing from a laser light output a feedback signal which is representative of the noise and frequency dependent output intensity of the laser light output; means for applying a phase shift to the feedback signal; means for converting the feedback signal to a level signal which is representative of the noise in the laser light output; amplifying means for amplifying the phase shifted feedback signal as a function of the level signal to produce a current gain signal; and means for superimposing the current gain signal on the current flowing through the laser diode.

REFERENCES:
patent: 4672192 (1987-06-01), Muka et al.
patent: 4847477 (1989-07-01), Smith
Thomas J. Kane, "Intensity Noise in Diode-Pumped Single-Frequency Nd:YAG Lasers and its Control by Electronic Feedback", Photonics Technology Letters, vol. 2, No. 4, Apr. 1990.

Affiliated with

Also associated with

Rating

Laser feedback control circuit and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Laser feedback control circuit and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser feedback control circuit and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2396258