Optical q-switching to generate ultra short pulses in diode...

Details Optical q-switching to generate ultra short pulses in diode... Optical q-switching to generate ultra short pulses in diode...

H - Electricity

04

B

H04B 10/145 (2006.01) H01S 3/18 (1995.01)

Patent

CA 2201622

A system for generating an ultra short optical pulse by pumping a semiconductor signal laser with an optical pulse from a semiconductor probe laser. The signal laser has dual segments each operated under different d.c. injection current levels. The probe laser is modulated with a pulsed input and the optical output thereof is coupled via optical means to the signal laser so as to Q-switch the latter. Optical pulses in the 65 ps range result.

Système destiné à générer une impulsion optique ultracourte par pompage d'un laser à semiconducteurs au moyen d'une impulsion optique émise à partir d'un laser-sonde à semiconducteurs. Le laser à semiconducteurs dispose de doubles segments fonctionnant à différents niveaux de courants d'injection de courant continu. Le laser-sonde est modulé par une entrée impulsionnelle et sa sortie optique est couplée au laser à semiconducteurs par un moyen optique de manière à faire passer ce dernier en mode de fonctionnement déclenché. Les impulsions optiques ainsi obtenues sont de l'ordre de 65 picosecondes.

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