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. 09, 2025
Filed:
Jan. 20, 2023
Cisco Technology, Inc., San Jose, CA (US);
Tymon Barwicz, Holmdel, NJ (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
In part, the disclosure relates to a reflective loopback structure comprising a reflector, a first waveguide defining an optical input, a second waveguide defining an optical output; and a merged waveguide structure defining a front surface and a back surface and a first axis. In some embodiments, the reflector disposed at a back surface, the first axis normal to the front surface and the back surface, and the first waveguide and the second waveguide angled relative to each other by an angle θ defined therebetween. In many embodiments, the waveguides extend from the front surface in different directions and each angled relative to the first axis by an angle φ, wherein φ is about θ/2, the optical input in optical communication with the optical output, the reflector in optical communication with the first optical input and the first optical output.