Device for non-linear signal conversion by four-wave mixing

US9377668B2 · kind B2 · utility

Assignee

• COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR

Inventors

• Mickael Brun · Eybens, FR
• Pierre Labeye · Grenoble, FR
• Sergio Nicoletti · Le Pont-de-Claix, FR
• Adonis Bogris · Athens, GR
• Alexandros Kapsalis · Athens, GR
• Dimitris Syvridis · Athens, GR

Key dates

• Filing date: Jun 18, 2014
• Grant date: Jun 28, 2016
• Expiry date: Jan 23, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F2202/105
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A device for non-linear conversion of first infrared signal into a second infrared signal with a wavelength that is less than that of the first infrared signal by means of four-wave mixing, which includes at least one portion of SiGe arranged on at least one first layer of material with a refractive index which is less than that of silicon, a germanium concentration in the portion of SiGe which varies continuously between a first value and a second value which is greater than the first value, in a direction which is approximately perpendicular to a face of the first layer on which the portion of SiGe is arranged, and in which a summital part of the portion of SiGe where the germanium concentration is equal to the second value is in contact with a gas and/or a material with a refractive index which is less than that of the silicon.