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1. WO2014166207 - EQUALIZATION METHOD AND DEVICE FOR OPTICAL POWER

Publication Number WO/2014/166207
Publication Date 16.10.2014
International Application No. PCT/CN2013/083485
International Filing Date 13.09.2013
IPC
H04B 10/294 2013.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
29Repeaters
291in which processing or amplification is carried out without conversion of the main signal from optical form
293Signal power control
294in a multiwavelength system, e.g. gain equalisation
H04B 10/07 2013.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
07Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
CPC
H04B 10/07955
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
07Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
075using an in-service signal
079using measurements of the data signal
0795Performance monitoring; Measurement of transmission parameters
07955Monitoring or measuring power
H04B 10/564
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
50Transmitters
564Power control
H04J 14/021
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
14Optical multiplex systems
02Wavelength-division multiplex systems
0201Add-and-drop multiplexing
0202Arrangements therefor
021Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
H04J 14/0212
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
14Optical multiplex systems
02Wavelength-division multiplex systems
0201Add-and-drop multiplexing
0202Arrangements therefor
021Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
0212using optical switches or wavelength selective switches [WSS]
H04J 14/0221
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
14Optical multiplex systems
02Wavelength-division multiplex systems
0221Power control, e.g. to keep the total optical power constant
H04L 27/01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
01Equalisers
Applicants
  • 中兴通讯股份有限公司 ZTE CORPORATION [CN]/[CN]
Inventors
  • 华锋 HUA, Feng
  • 沈百林 SHEN, Bailin
Agents
  • 北京康信知识产权代理有限责任公司 KANGXIN PARTNERS,P.C.
Priority Data
201310122436.310.04.2013CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) EQUALIZATION METHOD AND DEVICE FOR OPTICAL POWER
(FR) PROCÉDÉ ET DISPOSITIF D'ÉGALISATION DE PUISSANCE OPTIQUE
(ZH) 光功率均衡方法及装置
Abstract
(EN)
Disclosed are an equalization method and device for optical power, which are applied to a flexible grid restructurable add drop multiplexer (Flex ROADM) system. The equalization method for optical power comprises: according to an optical power control target value and an optical power monitoring result of an optical channel, judging whether optical power equalization needs to be performed on the optical channel; and in the case where the judging result is yes, according to the optical power monitoring result, performing equalization on the optical power of the optical channel and the optical power of each subcarrier in the optical channel. By means of the present invention, the effect that the optical performance of the Flex ROADM system satisfying requirements is guaranteed is achieved.
(FR)
La présente invention concerne un procédé et un dispositif d'égalisation de puissance optique appliqués tous les deux à un système de multiplexeur à insertion-extraction optique reconfigurable à grille flexible (Flex ROADM). Le procédé d'égalisation de puissance optique fait appel : conformément à une valeur cible de commande de puissance optique et à un résultat de surveillance de puissance optique d'un canal optique, à l'évaluation du fait qu'une égalisation de puissance optique doit être exécutée par rapport au canal optique ; et, dans le cas où le résultat d'évaluation est positif, conformément au résultat de surveillance de puissance optique, à l'exécution d'une égalisation de la puissance optique du canal optique et de la puissance optique de chaque sous-porteuse du canal optique. Grâce à la présente invention, on obtient l'effet de garantie de satisfaction d'exigences de la performance optique du système Flex ROADM.
(ZH)
本发明公开了一种光功率均衡方法及装置,应用于灵活栅格可重构分插复用器Flex ROADM系统。其中,该光功率均衡方法包括:根据光通道的光功率控制目标值和光功率监测结果,判断是否需要对光通道进行光功率均衡;在判断结果为是的情况下,根据光功率监测结果对光通道的光功率以及光通道内各子载波的光功率进行均衡。通过本发明,达到了保证Flex ROADM系统的光性能满足要求的效果。
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