Surface emitting laser

Details Surface emitting laser Surface emitting laser

H - Electricity

01

S

H01S 5/183 (2006.01) H01S 5/022 (2006.01) H01S 3/19 (1995.01)

Patent

CA 2078483

Reduction of laser threshold in an electrically pumped vertical cavity laser is the consequence of interpositioning of an electrode layer intermediate the active, photon producing region, and at least one of the two Distributed Bragg Reflectors defining the laser cavity. The advance is a consequence of the lowered pump circuit resistance due to elimination of one or both DBRs - in particular, to elimination of the p-doped DBR - from the pump circuit.

L'abaissement du seuil laser dans un laser à cavité verticale à pompage électrique est la conséquence de l'interposition d'une couche électrodique entre la région productrice de photons et au moins un de deux réflecteurs de Bragg répartis (RBR) qui définissent la cavité du laser. L'amélioration découle de la réduction de la résistance du circuit de pompage par suite de l'élimination de ce circuit de l'un des RBR ou des deux, en particulier de l'élimination du RBR à dopage p.

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