Apparatus and method for laser bias and modulation control

Details Apparatus and method for laser bias and modulation control Apparatus and method for laser bias and modulation control

1994-01-05

1995-03-28

Davie, James W.

Coherent light generators

Particular beam control device

Optical output stabilization

372 26, 372 38, H01S 310

Patent

active

054024331

ABSTRACT:
The apparatus (10) includes a laser driver (16) that receives low speed and high speed digital and analog input signals (12, 14), and biases and modulates the laser diode (22) accordingly. The laser driver (16) receives and responds to input from a feedback circuit (36, 38), which includes an average power control portion (36), and a modulation power control portion (38). The average power control portion (36) of the feedback circuit generally determines the DC component of the laser diode output, and compares it to a reference average. The modulation power control portion (38) of the feedback circuit generally determines the maximum and minimum peaks in the laser diode output, takes their average and compares the average to the DC component of the laser output from the average power control portion (36). The laser diode (22) is then driven by the laser driver (16) in response to the comparisons.

REFERENCES:
patent: 4677632 (1987-06-01), Lisco et al.
patent: 5224112 (1993-06-01), Uesaka
patent: 5268916 (1993-12-01), Slawson et al.

Affiliated with

Also associated with

Rating

Apparatus and method for laser bias and modulation control does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2257040