Light emitting element drive system

Details Light emitting element drive system Light emitting element drive system

H - Electricity

01

S

325/1, 345/32

H01S 5/0683 (2006.01) H01S 5/062 (2006.01) H04B 10/155 (2006.01) H05B 33/08 (2006.01) H01S 5/042 (2006.01) H01S 5/068 (2006.01)

Patent

CA 1075316

ABSTRACT OF THE DISCLOSURE In a system in which a light emitting element such as a semicon- ductor laser, light emitting diode or the like is modulated directly by a drive current corresponding to an input modulation signal, the light output for a given drive current gradually decreases and where the pulse width of the drive current is sufficiently wide the output pulse sage. These effects are due to thermal causes. The invention involves compensating for the decrease and sag. Various circuits providing this compensation are disclosed. One circuit ensures that the light emitting element is driven by a drive current corresponding to a composite signal composed of an input modulation signal and its integrated value. A D.C. component of appropriate magnitude may also be imposed on the drive current.

279041

Affiliated with

Also associated with

Rating

Light emitting element drive system 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 emitting element drive system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light emitting element drive system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-851498