ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,481,167, issued on Nov. 25, was assigned to nLIGHT Inc. (Camas, Wash.).
"Fiber-based angular homogenizer" was invented by Jay Small (Camas, Wash.), Shuang Li (Camas, Wash.) and Dahv A.V. Kliner (Camas, Ore.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Angularly homogenizing gradient index optical fiber having a refractive index profile that is non-quadratic to a degree sufficient to enhance precession of light as it is propagated through the fiber. Deviation from the quadratic may be limited to avoid profoundly changing the radial boundary within the fiber. Beam asymmetry, for example, associated with small aperture sources launched into a fiber off a...