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:
Feb. 13, 2024
Filed:
Dec. 21, 2018
Lumentum Technology Uk Limited, Towcester, GB;
Selina Farwell, Northamptonshire, GB;
Lumentum Technology UK Limited, Northamptonshire, GB;
Abstract
A method of equalising optical losses, at a required operating wavelength, in waveguide sections in an optoelectronic device comprising a first semiconductor waveguide section and a second semiconductor waveguide section, the method comprising determining () a first optical loss through the first waveguide section for a signal with the required operating wavelength, determining () a second optical loss through the second waveguide section for the signal, determining () a loss difference between the first optical loss and the second optical loss, determining () a first bias voltage based on the loss difference and the operating wavelength, such that the loss difference is reduced, and applying () the bias voltage to the first waveguide section.