WO2023004567 - DEVICE AND METHODS FOR REAL-TIME POLARIZATION-DEPENDENT LOSS MONITORING AT COHERENT TRANSCEIVERS
National phase entry:
Publication Number
WO/2023/004567
Publication Date
02.02.2023
International Application No.
PCT/CN2021/108582
International Filing Date
27.07.2021
Title **
[English]
DEVICE AND METHODS FOR REAL-TIME POLARIZATION-DEPENDENT LOSS MONITORING AT COHERENT TRANSCEIVERS
[French]
DISPOSITIF ET PROCÉDÉS DE SURVEILLANCE DE PERTE DÉPENDANT DE LA POLARISATION EN TEMPS RÉEL AU NIVEAU D'ÉMETTEURS-RÉCEPTEURS COHÉRENTS
Applicants **
HUAWEI TECHNOLOGIES CO., LTD.
Huawei Administration Building
Bantian, Longgang District
Shenzhen, Guangdong 518129, CN
Inventors
TANG, Xuefeng
Suite 400, 303 Terry Fox Drive, Kanata
Ottawa, Ontario 231, CA
GAO, Ge
Arcs De Seine 20 Quai Du Point Du Jour 92100 Boulogne Billancourt [Floor 1]
92100 Boulogne Billancourt, FR
WANG, Jianwu
Huawei Administration Building
Bantian, Longgang District
Shenzhen, Guangdong 518129, CN
JIANG, Zhiping
Suite 400, 303 Terry Fox Drive, Kanata
Ottawa, Ontario 231, CA
ZHANG, Zhuhong
Suite 400, 303 Terry Fox Drive, Kanata
Ottawa, Ontario 231, CA
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
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International Searching Authority |
CNIPA
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| Applicant's Legal Status |
Legal Entity
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| * | |
| * | |
| * | |
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| Entry into National Phase under |
Chapter I
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| Translation |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing | 1290 | |
| EPO | Filing, Examination | 8363 | |
| Japan | Filing | 594 | |
| South Korea | Filing | 482 | |
| USA | Filing, Examination | 2710 |
Total: 13439 USD
The term for entry into the National Phase has expired. This quotation is for informational purposes only
Abstract[English]
The embodiment of this invention discloses a method of monitoring a link polarization dependent loss (PDL) of an optical communication link a signal is subjected to during transmission through the optical communication link, wherein the method comprises: the coherent receiver receives the received signal which is subjected to one or more impairments including PDL in Amplifier Gain Control (AGC) mode, estimate an AGC gain effect of the AGC mode, corrects for the AGC gain effect in the received signal; determine the link PDL from the compensated received signal; and reports the link PDL.[French]
Le mode de réalisation de la présente invention divulgue un procédé de surveillance d'une perte dépendant de la polarisation (PDL) de liaison d'une liaison de communication optique à laquelle un signal est soumis pendant la transmission par l'intermédiaire de la liaison de communication optique, le procédé comprenant les étapes suivantes : le récepteur cohérent recevant le signal reçu qui est soumis à une ou plusieurs dégradations comprenant une PDL dans un mode de commande de gain d'amplificateur (AGC), estimer un effet de gain AGC du mode AGC, corrige l'effet de gain AGC dans le signal reçu; déterminer la PDL de liaison à partir du signal reçu compensé; et rapporte la PDL de liaison.