Optoelectronic device with integrated wavelength filtering

H - Electricity – 01 – L

Patent

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H01L 31/0232 (2006.01)

Patent

CA 2413471

The invention concerns an optoelectronic device comprising filtering means (3) for transmitting a selected spectral part of light waves and for reflecting a matching spectral part, placed between means (4) for reflecting the selected spectral part towards the filtering means, and converting means (1) for transmitting to the filtering means the light waves to be filtered. The converting means are at a first distance (d1) from the filtering means, selected so that the waves they transmit and the reflected matching spectral part generate a first stationary wave whereof the associated electric field has a node in the conversion means (1), and at a second distance (d2) from the reflecting means selected so that the selected spectral part and the selected and reflected spectral part generate a second stationary wave whereof the associated electric field has an anti-node in the conversion means.

Un dispositif optoélectronique comprend des moyens de filtrage (3) propres à transmettre une partie spectrale choisie d'ondes lumineuses et réfléchir une partie spectrale complémentaire, placés entre des moyens (4) pour réfléchir la partie spectrale choisie vers les moyens de filtrage, et des moyens de conversion (1) pour transmettre aux moyens de filtrage les ondes lumineuses à filtrer. Les moyens de conversion sont à une première distance (d1) des moyens de filtrage, choisie de sorte que les ondes qu'ils leur transmettent et la partie spectrale complémentaire réfléchie créent une première onde stationnaire dont le champ électrique associé présente un noeud dans les moyens de conversion (1), et à une seconde distance (d2) des moyens de réflexion choisie de sorte que la partie spectrale choisie et la partie spectrale choisie et réfléchie créent une seconde onde stationnaire dont le champ électrique associé présente un ventre dans les moyens de conversion.

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