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:
Dec. 02, 2025
Filed:
Jul. 10, 2020
Universitat Politecnica DE Catalunya, Barcelona, ES;
Daniel Segura Garcia, Barcelona, ES;
David Cardador Maza, Barcelona, ES;
Jordi Llorca Pique, Barcelona, ES;
Abstract
The present invention proposes an optical band-pass filter with blocked sidebands. The filter comprises a photonic crystal structure based on macroporous silicon having a series of pores defined in the structure. The photonic crystal structure includes a resonator block (BR), comprising at least two periodicity groups (GR, GR) between which there is a resonant cavity (CR), wherein the resonant cavity (CR) is adapted to provide a resonance peak in the center of a non-transmitting frequency band of the resonator block (BR); and at least one of a high-pass block (BPA), adapted to block wavelengths below said non-transmitting frequency band; or a low-pass block (BPB), adapted to block wavelengths above said non-transmitting frequency band.