Patent ID: 7170918
Filing Date: 2007-01-30
Classification: B82Y,H01L,H01S

Abstract:
1. Resonant cavity diode capable of emitting and detecting light with a wavelength λ, this diode comprising: first and second mirrors; a resonant cavity delimited by these first and second mirrors; an active medium contained in this cavity and capable of emitting and detecting light; a first electrically insulating ring parallel to the first and second mirrors and placed in the cavity on one side of the active medium, this first ring defining two parts in the cavity, namely a first cylindrical part passing through the first ring and a second part that contains this first ring; and at least one second electrically insulating ring parallel to the first and second mirrors and placed in the cavity on one side of the active medium, this second ring being contained in the second part of the cavity and having the same inside diameter and the same outside diameter as the first ring, the total thickness of the first and second rings being provided such that the optical length of the resonant cavity is k×λ in the first part (P