Electronic simulation for compensating laser diode thermal...

Details Electronic simulation for compensating laser diode thermal... Electronic simulation for compensating laser diode thermal...

G - Physics

06

G

G06G 7/62 (2006.01) H01S 3/10 (2006.01) H01S 5/062 (2006.01) H05B 43/00 (2006.01) H01S 5/068 (2006.01) H01S 5/40 (2006.01)

Patent

CA 2132474

An electronic compensation circuit in which a simulation of a laser's thermal droop characteristics is used to adjust input to the laser and thereby compensate for the laser's thermal droop effects The simulation circuit is connected to the laser either as an open loop circuit to provide a once only correction or as a closed loop feedback circuit to provide a continuous correction of the laser droop effects. The simulation circuit is designed using either analog or digital circuitry and is adjustable to provide compensation for lasers having different time constants of droop or different values of droop.

L'invention est un circuit de correction électronique dans lequel une simulation des caractéristiques d'affaiblissement thermique d'un laser est utilisée pour ajuster le niveau d'entrée de ce laser et compenser ainsi son affaiblissement thermique. Le circuit de simulation annexe est connecté au laser en boucle ouverte pour produire une seule correction ponctuelle, ou en boucle de rétroaction fermée pour produire une correction continue des effets dus à l'affaiblissement. Ce circuit est constitué de circuits analogiques ou numériques et la correction produite peut être ajustée à des lasers ayant des constantes de temps d'affaiblissement différentes ou des affaiblissements différents.

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