US Patent Issued to SHANDONG NORMAL UNIVERSITY on Dec. 2 for "Method for fabricating nonlinear optical waveguide with gradient refractive index distribution" (Chinese Inventors)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,487,403, issued on Dec. 2, was assigned to SHANDONG NORMAL UNIVERSITY (Jinan, China).

"Method for fabricating nonlinear optical waveguide with gradient refractive index distribution" was invented by Chen Chen (Jinan, China), Junlong Zhang (Jinan, China) and Feng Chen (Jinan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for fabricating a nonlinear optical waveguide with gradient refractive index distribution, in which a nonlinear optical crystal is prepared; a type of first heavy ions, a type of second heavy ions and parameters related to an irradiation process are determined; the first heavy ions are accelerated to generate a first ion b...