ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,457,053, issued on Oct. 28, was assigned to SANTEC HOLDINGS Corp. (Aichi, Japan).
"Optical transmission system" was invented by Yasuki Sakurai (Komaki, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical filter is configured to selectively pass, as an output light, at least one wavelength component of multiple wavelength components included in an input light. The optical filter comprises a movable element. A controller is configured to adjust a passband by controlling the movable element based on power of light corresponding to the output light measured by a power monitor. The optical filter is configured as a filter so that in a first wavel...