Driver circuit for semiconductor laser diode

Details Driver circuit for semiconductor laser diode Driver circuit for semiconductor laser diode

2006-08-23

2008-08-26

Rodriguez, Armando (Department: 2828)

Coherent light generators

Particular component circuitry

For driving or controlling laser

C372S029020, C372S038070

Reexamination Certificate

active

07418018

ABSTRACT:
The present invention provides an LD driver able to stably control the output power and the extinction ratio of the optical signal without regarding the coupling mode, the AC mode or the DC mode, between the laser diode and the LD driver. The LD driver includes the peak hold and the bottom hold, each detecting the peak level or the bottom level of the monitored signal, respectively. The bias driver adjusts the bias current so as to equalize the peak level of the monitored signal to the reference, REF_PEAK, while, the modulation driver adjusts the modulation current so as to equalize the bottom level of the monitored signal to the reference, REF_BOTTOM. In the present invention, the adjustment of the modulation current by the modulation driver starts with a substantial delay with respect to the stabilization of the bias current by the bias driver.

REFERENCES:
patent: 4817208 (1989-03-01), Koch et al.
patent: 2005/0025201 (2005-02-01), Schrodinger et al.
patent: 2006/0007971 (2006-01-01), Sato et al.
patent: 2006/0022861 (2006-02-01), Kudoh et al.
patent: 04-139779 (1992-05-01), None

Affiliated with

Also associated with

Rating

Driver circuit for semiconductor laser diode does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Driver circuit for semiconductor laser diode, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Driver circuit for semiconductor laser diode will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4012598