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:
Apr. 04, 2023
Filed:
Aug. 20, 2019
Technion Research & Development Foundation Limited, Haifa, IL;
Amir Rozental, Haifa, IL;
Resmi Ravi Kumar, Haifa, IL;
Shai Tsesses, Nesher, IL;
Assaf Grinberg, Binyamina, IL;
Abstract
Apparatus is provided including an acoustic sensor () having an optical waveguide (). The optical waveguide () includes a waveguide core () having a waveguide core refractive index and a waveguide core photo-elastic coefficient, and an over-cladding layer () coupled to the waveguide core () and including an optically transparent polymer having an over-cladding refractive index and an over-cladding photo-elastic coefficient. The waveguide core refractive index is greater than the over-cladding refractive index, and the over-cladding photo-elastic coefficient is greater than the waveguide core photo-elastic coefficient. Other applications are also described.