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. 16, 2021
Filed:
Aug. 16, 2019
Kvh Industries, Inc., Middletown, RI (US);
Liming Wang, Tinley Park, IL (US);
KVH Industries, Inc., Middletown, RI (US);
Abstract
A low propagation loss and loose fabrication tolerance waveguide for a photonic integrated circuit (PIC) device may be realized by using a weak optical confinement to the optical mode, through designing a waveguide of single or double thin strips with high aspect ratio as waveguide core. To introduce a modulation functionality on this type of PIC device, a thin-film electrooptic material may be incorporated to form a hybrid phase modulating device, where a material that can be processed easily may be used as a device layer and is bonded to, or deposited with, a thin electrooptic film that may otherwise be difficult to fabricate or process. A low insertion loss, compact size and high-efficiency phase modulator on PIC device with this type of weakly confined waveguide is disclosed.