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:
Oct. 27, 2026
Filed:
May. 05, 2023
Xilinx, Inc., San Jose, CA (US);
Chuan Xie, Fremont, CA (US);
Mayank Raj, San Jose, CA (US);
Anish Joshi, San Jose, CA (US);
Zakriya Mohammed, San Jose, CA (US);
Gareeyasee Saha, San Jose, CA (US);
Parag Upadhyaya, Los Gatos, CA (US);
Yohan Frans, Palo Alto, CA (US);
XILINX, INC., San Jose, CA (US);
Abstract
A silicon-on-insulator (SOI) dense-wavelength-division-multiplexing (DWDM) device includes micro-ring modulators (MRMs) having radii under 5 micrometers. A 16-channel embodiment may provide a free spectral range of 3.2 THz, 200 GHz channel spacing, 41 GHz bandwidth, and a Q factor of 4500. PN junctions of rib ring waveguides (RWRs) may be perpendicular or parallel with a plane of the RWRs. On-chip inductive components may be used to match reactances of the PN junctions. The RWRs may be relatively wide and a rib bus waveguide may be relatively narrow (e.g., narrower than the RWRs). MRM outer slabs may be wider than inner slabs. Regions inside and outside of the RWRs, including slabs at optical coupling gaps may be doped to improve modulation efficiency. Regions of the rib bus waveguide distant from the optical coupling gaps may be undoped. Cavities may be provided below the MRMs and associated heater elements.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile