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. 24, 2023
Filed:
Jun. 28, 2021
Lumentum Operations Llc, San Jose, CA (US);
Amyas Holroyd, Paignton, GB;
Lumentum Operations LLC, San Jose, CA (US);
Abstract
A controller may apply an electrical signal to each of two arms of a Mach-Zehnder Interferometer (MZI) and may dither the electrical signals applied to one, or both, of the arms between a nominal state, a high state and a low state such that there is a constant phase difference between the arms in the high and low states compared to the nominal state, wherein each electrical signal comprises a static component (IL, IR, IL', IR′) and a dither component. The controller may change the static component of the respective electrical signal applied to one, or both, of the arms in accordance with changes to an operating point during variation of the dither component and may vary a dither magnitude in accordance with changes in the electrical signal applied to one, or both, of the arms so as to maintain the constant phase difference.