Patent · US Active

Wavelength demultiplexing device in particular for out-of-plane demultiplexing

US11448826B2 · kind B2 · utility

0Cited by

22References

14Claims

0Family size

Assignee

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

Inventors

Cyrielle MONPEURT · Grenoble, FR
Salim Boutami · Grenoble, FR

Key dates

Filing date	Jul 6, 2021
Grant date	Sep 20, 2022
Priority date	—
Expiry date	Jul 6, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH04N23/20
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A wavelength demultiplexing device configured so as to spatially distributing the spectral contributions of an incident light beam, when in use, and which includes a linear waveguide and a planar waveguide, formed in a coplanar way and adapted to be optically coupled with one another along a coupling line, by evanescent coupling. Such a device may further include diffraction gratings located in the planar waveguide, to extract light out of the latter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.