US Patent Issued to NKT Photonics on May 27 for "Hollow core optical fiber and a laser system" (Danish Inventors)

ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,877, issued on May 27, was assigned to NKT Photonics A/S (Birkerod, Denmark).

"Hollow core optical fiber and a laser system" was invented by Jens Kristian Lyngsoe (Hornbaek, Denmark), Christian Jakobsen (Virum, Denmark) and Mattia Michieletto (Copenhagen, Denmark).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hollow core photonic crystal fiber (PCF) including an outer cladding region and seven hollow tubes surrounded by the outer cladding region. Each of the hollow tubes is fused to the outer cladding to form a ring defining an inner cladding region and a hollow core region surrounded by the inner cladding region. The hollow tubes are not touching...