US Patent Issued to QUINTESSENT on Sept. 15 for "Contradirectional-filter architecture having low back-reflection" (California Inventor)

ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,736,752, issued on Sept. 15, was assigned to QUINTESSENT INC. (Goleta, Calif.).

"Contradirectional-filter architecture having low back-reflection" was invented by Szilard Szoke (Los Angeles).

According to the abstract* released by the U.S. Patent & Trademark Office: "The teachings of the present disclosure enable wavelength-agile WDM systems comprising wavelength drop ports based on contra-DC wavelength filters, where back-reflections at each drop port are mitigated by virtue of the system architecture. The contra-DC filters are arranged in a series along a common bus waveguide such that the operating wavelengths of the filters change in monotonic fashion through the series. As a re...