US Patent Issued to FUJIFILM on June 30 for "Wavelength selective switch" (Japanese Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,669,735, issued on June 30, was assigned to FUJIFILM Corp. (Tokyo).

"Wavelength selective switch" was invented by Kazuya Hisanaga (Minamiashigara, Japan), Yukito Saitoh (Minamiashigara, Japan) and Yujiro Yanai (Minamiashigara, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a wavelength selective switch where crosstalk is improved and miniaturization is realized. The wavelength selective switch includes: one or more input ports; one or more output ports; a polarization controller that adjusts a polarization state of light incident from the input ports; a dispersive element that demultiplexes wavelength-multiplexed light incident from th...