公开(公告)号：US20250080241A1

公开(公告)日：2025-03-06

申请号：US18241933

申请日：2023-09-04

Applicant: Nokia Solutions and Networks Oy

Inventor： Mijail Szczerban

IPC: H04B10/85 ,  H04B10/079 ,  H04B10/25

Abstract: A fiber sensing control device (FSCD) is provided for protecting a network infrastructure in an optical fiber network against intrusive fiber sensing. The FSCD resides on an optical fiber cable at a boundary between the first network segment containing the network infrastructure that is to be protected and a neighboring network segment. The FSCD comprises at least one blocking element that can block sensing of backscattered light on at least one optical fiber of the optical fiber cable.

公开(公告)号：US20240369774A1

公开(公告)日：2024-11-07

申请号：US18143566

申请日：2023-05-04

Applicant: Nokia Solutions and Networks Oy

Inventor： Mijail Szczerban ,  Roland Ryf ,  John E Simsarian

IPC: G02B6/35

Abstract: A method and apparatus for optical cross-connection are provided for reflectively coupling at least a first intermodular optical signal from at least one input optical fiber port of a source OCS module to an output optical port of a destination OCS module. The coupling involves steering the intermodular optical signal to an intermediate optical reflector of the source OCS module, using the intermediate optical reflector to steer the optical signal out of the source OCS module to the destination OCS module, and within the destination OCS module, steering the optical signal onto an output optical fiber port.