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:
Jun. 23, 2026
Filed:
Nov. 30, 2023
Lumentum Technology (Uk) Limited, Northamptonshire, GB;
John M. Heaton, Worcestershire, GB;
Robert Griffin, Northamptonshire, GB;
Maxime Poirier, Gatineau, CA;
Neil David Whitbread, Northamptonshire, GB;
Lumentum Technology UK Limited, Northamptonshire, GB;
Abstract
In some implementations, an electro-optic waveguide modulator includes a deep-etched waveguide. A first cladding is disposed on a top surface of the deep-etched waveguide. A second cladding is disposed on a bottom surface of the deep-etched waveguide. The deep-etched waveguide has a length that extends in a first direction and a width that extends in a second direction. The width of the deep-etched waveguide is non-constant along at least a portion of the length of the deep-etched waveguide. For example, a difference between a maximum width of the deep-etched waveguide and a minimum width of the deep-etched waveguide along at least the portion of the length of the deep-etched waveguide satisfies a width difference threshold that is equal to 10% of the maximum width.