US Patent Issued to Cisco Technology on June 30 for "Focal polarization beam displacer" (Austrian Inventor)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,669,637, issued on June 30, was assigned to Cisco Technology Inc. (San Jose, Calif.).

"Focal polarization beam displacer" was invented by Roman Bruck (Vienna).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments herein describe a focal polarization displacer with a birefringent crystal disposed within the focal region of a lens. The birefringent crystal separates optical signals into at least two separate signals based on having different polarization states and an optical axis of the birefringent crystal is set so that focal points of the two separate signals are at an output surface of the polarization displacer where the two separate signals are...