ALEXANDRIA, Va., July 3 -- United States Patent no. 12,345,597, issued on July 1, was assigned to SUMITOMO ELECTRIC INDUSTRIES LTD. (Osaka, Japan).
"Mode-dependent loss measurement device and mode-dependent loss measurement method" was invented by Takafumi Ohtsuka (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus includes an element to transmit a partial amount of first light guided through the M cores of a target object and second light guided through M optical waveguides, and to reflect remaining amount thereof, a first modulator to individually modulate the first light, a first detector to output a first signal based on the first light reflected by the element and the second light ...