System and method for laser calibration

Details System and method for laser calibration System and method for laser calibration

G - Physics

01

J

G01J 1/32 (2006.01) A61B 18/22 (2006.01)

Patent

CA 2608771

A laser calibration system and method are described for a laser unit (10) operable to fire a laser beam that is guided along an optical delivery path (310) to a delivery point at a distal end of the optical delivery path. The laser calibration system comprises a laser controller operable to drive the laser unit (10) to fire the laser beam dependent on a desired laser power and a compensation factor associated with the optical delivery path. A detector (70) generates a measurement signal related to laser power at the delivery point; and a laser calibrator (802) generates an error signal dependent on a comparison (810) of the desired laser power and the measurement signal and to adjust the compensation factor dependent on the error signal.

L~invention concerne un système et un procédé de calibrage de laser pour une unité laser (10) utilisée pour émettre un faisceau laser guidé le long d~un chemin de transmission optique (310) jusqu~à un point de réception situé à une extrémité distale du chemin de transmission optique. Le système de calibrage de laser comprend un module de commande de laser utilisé pour exciter l~unité laser (10) et lui faire émettre le faisceau laser en fonction d~une puissance laser souhaitée et d~un facteur de compensation associé au chemin de transmission optique. Un détecteur (70) génère un signal de mesure lié à la puissance laser au point de réception ; et un module de calibrage de laser (802) génère un signal d~erreur en fonction d~une comparaison (810) entre la puissance laser souhaitée et le signal de mesure afin d~ajuster le facteur de compensation en fonction du signal d~erreur.

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