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. 16, 2026
Filed:
Jun. 30, 2023
Ii-vi Delaware, Inc., Wilmington, DE (US);
II-VI DELAWARE, INC., Wilmington, DE (US);
Abstract
A raised cosine waveform is used for the drive signal input to an optical device that exhibits a nonlinear time domain response (e.g., tunable optical filter). The raised cosine waveform (either current or voltage) exhibits significantly fewer high frequency components than conventional drive signals and, as a result, reduces the oscillatory movements of the device as it is settling into a target position. In the specific example of a MEMS tilt mirror as used to tune a nonlinear optical filter, the raised cosine drive signal allows for the tilt mirror to quickly settle into a new position and avoid the prolonged oscillatory motion known to limit the responsivity of prior art tunable optical filters.