Optical power measurement in photonic integrated devices

Details Optical power measurement in photonic integrated devices Optical power measurement in photonic integrated devices

H - Electricity

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H01L 31/10 (2006.01) G01J 1/42 (2006.01) G02F 1/01 (2006.01) G02F 1/225 (2006.01) H01L 31/101 (2006.01) H01L 31/108 (2006.01)

Patent

CA 2336165

A photonic integrated device (1) comprises a waveguide (14, 16) of semiconductor material and a detector (26) for measuring optical power of light travelling along the waveguide (14, 16). The detector which is monolithically integrated into the device measures a photocurrent on an electrode (26) which has been generated in the waveguide by two photon absorption.

Selon cette invention, un dispositif photonique intégré (1) comprend un guide d'ondes (14, 16) en matériau semi-conducteur et un détecteur (26) destiné à mesurer la puissance optique de la lumière se propageant le long du guide d'ondes (14, 16). Le détecteur, qui forme une structure monolithique avec le dispositif, mesure un courant photoélectrique sur une électrode (26), généré dans le guide d'ondes par l'absorption de deux photons.

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