The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 28, 2021
Filed:
Jan. 24, 2019
Consejo Superior DE Investigaciones Científicas (Csic), Madrid, ES;
Universidad DE Málaga, Malaga, ES;
Aitor Villafranca Velasco, Madrid, ES;
Alaine Herrero Bermello, Madrid, ES;
Pedro Corredera, Madrid, ES;
Robert Halir, Malaga, ES;
Alejandro Ortega Moñux, Malaga, ES;
J. Gonzalo Wangüemert Pérez, Malaga, ES;
Inigo Molina Fernández, Malaga, ES;
CONSEJO SUPERIOR DE INVESTIGACIONES CIENTÍFICAS (CSIC), Madrid, ES;
UNIVERSIDAD DE MÁLAGA, Malaga, ES;
Abstract
The invention relates to an integrated polarisation splitter based on a sub-wavelength multimode interference coupler (), in other words, a multimode interference coupler () with an anisotropic multimode waveguide region formed by a plurality of sections of core material () and a plurality of sections of a cladding material () alternately arranged in a periodic way, with a period (Λ) smaller than the wavelength of a light propagated through said anisotropic region. The core material sections () are rotated an angle (α) greater than zero with respect to a perpendicular with an input waveguide () to increase the anisotropic character of the multimode waveguide region.