公开(公告)号：US11178472B2

公开(公告)日：2021-11-16

申请号：US16424678

申请日：2019-05-29

Applicant: Nokia Solutions and Networks OY

Inventor： Patrick Iannone ,  Michael Straub ,  Thomas Pfeiffer ,  Joerg Hehmann

IPC: H04J14/00 ,  H04Q11/00 ,  H04B10/25 ,  H04B10/40 ,  H04B10/69 ,  H04B10/516

Abstract: A PON system comprising multiple PONs, each having a respective intelligent splitter monitor (ISM). In addition to having a passive optical splitter therein, an ISM also has several remotely powered active components configured to monitor the presence of uplink light signals on the ports of the splitter and communicate with the central office using out-of-band optical signals. These ISM functionalities enable the network operator, e.g., to automatically map PON connectivity, pairing each port on the splitter with a distinct optical network unit. The PON system further comprises an optical module connected to the multiple PONs through an optical switch in a manner that supports shared access to said module by the corresponding multiple ISMs. In an example embodiment, the optical module comprises an optical transceiver capable of communicating with the ISM transceivers and one or more lasers configured to provide high-intensity light for remotely charging the ISM batteries.

公开(公告)号：US20230318714A1

公开(公告)日：2023-10-05

申请号：US17709975

申请日：2022-03-31

Applicant: Nokia Solutions and Networks Oy

Inventor： Patrick Iannone ,  Roland Ryf ,  Rene-Jean Essiambre

IPC: H04B10/548

CPC classification number: H04B10/548

Abstract: An apparatus includes an optical PSK transmitter configured to output carrier-suppressed optical signal phase-modulated according to a M-PSK constellation without substantial amplitude modulation. The apparatus includes an optical phase modulator, a driver configured to drive the modulator with a PAM-N electrical signal, N>M, and a signal encoder configured to map an input bit stream to the PAM-N electrical signal.

公开(公告)号：US12191913B2

公开(公告)日：2025-01-07

申请号：US17709975

申请日：2022-03-31

Applicant: Nokia Solutions and Networks Oy

Inventor： Patrick Iannone ,  Roland Ryf ,  Rene-Jean Essiambre

IPC: H04B10/548

Abstract: An apparatus includes an optical PSK transmitter configured to output carrier-suppressed optical signal phase-modulated according to a M-PSK constellation without substantial amplitude modulation. The apparatus includes an optical phase modulator, a driver configured to drive the modulator with a PAM-N electrical signal, N>M, and a signal encoder configured to map an input bit stream to the PAM-N electrical signal.