US Patent Issued to National University of Singapore on Aug. 11 for "Method and device for optical power limiter" (Singaporean Inventors)

ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,704,747, issued on Aug. 11, was assigned to National University of Singapore (Singapore).

"Method and device for optical power limiter" was invented by Chao Wang (Singapore), Gong Zhang (Singapore) and Ci Wen Lim (Singapore).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical power limiter, a method of fabricating the optical power limiter, a method of limiting optical power, a method of upper bounding information leakage in quantum cryptography, and a quantum cryptography system. The optical power limiter comprises an optical input port; an optical output port; an effective medium disposed between the input port and the output port; and a diaphrag...