US 11,909,168 B2Granted

Self-adaptive wave band amplification method and amplifier

AssigneeAccelink Technologies Co., Ltd.

InventorsZhenyu Yu, Qinlian Bu, Chengpeng Fu, Xiao Cai, Fuxing Deng, Rui Lei

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Abstract

The present invention relates to the technical field of optical communications, and relates to an optical amplification method and an amplifier, and in particular, to a self-adaptive wave band amplification method and an amplifier. The present invention consists of a master amplifying unit and a slave amplifying unit, and can autonomously detect the service signal wave band range of an optical transmission line, and according to the detection result, the two amplifying units do not need to perform scheduling or configuration from the level of network management, and perform direct interaction and action from the bottom layer to implement self-adaptive on, off and adjustment in real time. On one hand, power consumption is reduced, and energy is saved; and on the other hand, the performance is optimized, and an optimal optical amplification index is obtained.

Claims8

Dependent claims

A self-adaptive wave band amplification method, characterized in comprising:

a light splitting step for detecting C band detection light and L band detection light in an in-band signal;
and
a scheduling step for enabling a slave Raman amplifying unit to participate in amplification after the L band detection light is detected,
wherein the method further comprises a wave combining step for performing a wave combination/splitting by using two optical wavelength division multiplexers after the slave Raman unit injects its pumping light into a master Raman unit, the wave combination comprising:
injecting pump light from the master Raman amplifying unit into a transmission fiber after wave combining/splitting once, and injecting pump light from the slave Raman unit into the transmission fiber after wave combining/splitting twice;
or
injecting the pump light from the slave Raman unit into the transmission fiber after wave combining/splitting once, and injecting the pump light from the master Raman unit into the transmission fiber after wave combining/splitting twice;
or
performing a first wave combination for the pump light from the master and slave Raman units and then a second wave combination/split with signal light.

6 more elements

A self-adaptive band amplifier, characterized in comprising:

a light splitting module for detecting C band detection light and L band detection light in an in-band signal;
and
a scheduling module for enabling a slave Raman amplifying unit to participate in amplification after the L band detection light is detected,
wherein the light splitting module comprises:
a first signal light splitter for splitting the in-band signal, and a first optical wavelength division multiplexer connected with the first signal light splitter, output ends of the first signal light splitter being respectively connected with a first photodetector and a second signal light splitter for a master Raman amplifying unit, and the second signal light splitter being connected with a first photodetector for the slave Raman amplifying unit.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/624,557Filed 25 Dec 2017
Priority: CN 201710480699.X22 Jun 2017
Published: US 2021/0021096 A121 Jan 2021
Granted: 20 Feb 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

H01S 3/13013
In optical amplifiers: by controlling the optical pumping
H01S 3/30
Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range: using scattering…
H01S 3/08013
Construction or shape of optical resonators or components thereof: resonator comprising a fibre, e.g. for modifying dispersion or repetition rate
H01S 3/10015
In optical amplifiers: by monitoring or controlling, e.g. attenuating, the input signal

Family

US 2021/0021096 A1Pre-grant publication · published 21 Jan 2021
US 11,909,168 B2This patent

From the US filing history. Foreign family members aren’t listed.

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