Patent ID: 8326098

Claim:
Gallery mode microdisc system for an electrically pumped optical source, the microdisc being formed on one face of a substrate and being parallel to the substrate, a part of the microdisc opposite to the lower part of the microdisc, or upper part, being provided with an electrical contact referred to as the upper contact, a central part of the microdisc, localized around a central axis of the microdisc, being electrically neutralised in order to prevent passage of an electric current through said central part, characterised in that: the lower part of the microdisc is provided with an electrical contact, referred to as the lower contact, in contact with the lower part to enable an electrical contact, the upper part of the microdisc is covered with a protective layer of electrically insulating material with an optical index lower than the optical index of the material constituting the microdisc, in which the central part of the electrically neutralized microdisc is an ion-implanted part implanted with H + ions.