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:
Jan. 07, 2025
Filed:
Sep. 13, 2024
The Shape Sensing Company, Austin, TX (US);
Alex Tongue, Dripping Springs, TX (US);
Justin Braun, Austin, TX (US);
The Shape Sensing Company, Austin, TX (US);
Abstract
Birefringence in optical fibers is mitigated using optical frequency domain reflectometry (OFDR) having a coupling point optically connected to a reference arm with a first, single mode fiber segment and optically connected to a measurement arm having single mode optical segments and polarization maintaining optical segments. The measurement arm has a first optical circulator connected to the coupling point via a second, single mode fiber segment; a second optical circulator for sending optical radiation to a sensor; a single mode optical segment between the first optical circulator and the second optical circulator including a third, single mode fiber segment. The measurement arm has an outbound path including a first polarization maintaining optical segment between the first and second optical circulator for rotating a polarization of the optical radiation once relative to a second polarization maintaining optical segment between the first and second optical circulator.