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. 01, 2026
Filed:
May. 26, 2023
Ii-vi Delaware, Inc., Wilmington, DE (US);
II-VI Delaware, Inc., Wilmington, DE (US);
Abstract
A circulator cable configured to couple an optical time domain reflectometer (OTDR) to an optical fiber span under test is provided. The circulator cable includes a bandpass optical filter configured to be coupled to an optical input port of the OTDR; and a directional optical coupling device coupled to the bandpass optical filter and an optical output port of the OTDR and configured to direct propagation of an optical probe signal generated by the OTDR from the optical output port toward the optical fiber span under test and direct reflections attributed to the optical probe signal from the optical fiber span under test into the bandpass pass optical filter.