US Patent Issued to Cisco Technology on March 17 for "Power insensitive stable isolator wavelength division multiplexer" (California Inventor)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,578,534, issued on March 17, was assigned to Cisco Technology Inc. (San Jose, Calif.).

"Power insensitive stable isolator wavelength division multiplexer" was invented by Colm Cryan (San Jose, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is an apparatus, including an isolator wavelength division multiplexer (IWDM). A signal-fiber is optically coupled to a first side of the WDM-Isolator core. The signal-fiber is configured to propagate signal light. A pump-fiber defines an expanded tip optically coupled to the WDM-Isolator core. The pump-fiber is configured to propagate pump light. A common-fiber is optically coupled to the WDM-Isolat...