To address the current national emergency, U.S. entities may be eligible to license select Sandia intellectual property at no cost for a limited time. Learn more.

Search/Browse Tech

High density optical waveguide using hybrid spiral pattern

United States Patent

To discuss licensing opportunities, fill out our Contact Form 
May 26, 2020
View the Complete Patent at the US Patent & Trademark Office
A hybrid spiral waveguide geometry is proposed that exhibits essentially zero curvature (i.e., infinite bend radius) at the center of the spiral (similar to a Fermat spiral), with the curvature then increasing in value as the spiral moves outward. Advantageously, as the spiral moves away from the center, the spacing between adjacent waveguides quickly approaches a constant value (similar to an Archimedean spiral). This hybrid spiral structure has been found to allow for a high density waveguide to be created with lower loss and requiring a smaller size than many conventional spiral configurations and finds use in optical delay lines, amplifiers and arrayed waveguide gratings.
April 29, 2019
G02B 6/125 (20060101); G02F 1/01 (20060101); G02B 6/12 (20060101);
STATEMENT OF GOVERNMENT SUPPORT This invention was made with Government support under Contract DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The U.S. Government has certain rights in the invention.