公开(公告)号：US20170279555A1

公开(公告)日：2017-09-28

申请号：US15504203

申请日：2015-08-18

Applicant: Xieon Networks S.à.r.l.

Inventor： Robert SCHIMPE

IPC: H04J14/02

CPC classification number: H04J14/021 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0212 ,  H04J14/0217 ,  H04J14/0294

Abstract: The present invention relates to adding and dropping signals in a node of an optical network, wherein the node includes a reconfigurable optical add/drop multiplexer (ROADM). The reconfigurable optical add/drop multiplexer (ROADM) comprises output ports and at least one add port connectable to at least one line interface of the network and adapted to receive a modulated optical signal from the line interface. Selection units are connected to one of said add ports and adapted to forward the respective signals to a selected output terminal. A plurality of broadcast units is adapted to broadcast signals forwarded by the selection. Then a multiplexing and selecting device or apparatus selects and multiplexes the optical signals broadcast via broadcast unit output terminals into a plurality of wavelength-division multiplexing (WDM) optical signals and forwards the same to output ports of the reconfigurable optical add-drop multiplexer (ROADM).

公开(公告)号：US20190327015A1

公开(公告)日：2019-10-24

申请号：US16463694

申请日：2017-12-22

Applicant: Xieon Networks S.à.r.l.

Inventor： Robert SCHIMPE

IPC: H04J14/02 ,  H04Q11/00 ,  G02B6/35 ,  G02B6/293

Abstract: A wavelength selective switching device comprises a plurality of input paths for receiving optical signals, a plurality of output paths for emitting the optical signals, and a switching unit for selectively directing the optical signals from the input paths to the output paths. The switching unit comprises a reflective area adapted to be concurrently illuminated by a first optical signal from a first input path among the plurality of input paths, and by a second optical signal from a second input path among the plurality of input paths, the second input path being different from the first input path, and to concurrently direct the first optical signal to a first output path among the plurality of output paths and the second optical signal to a second output path among the plurality of output paths, the second output path being different from the first output path. Said first output path and said second output path are spatially separated by said first input path and said second input path, or vice-versa.