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1. (WO2019024830) SYSTEMS AND METHODS FOR OPTICAL SIGNAL-TO-NOISE RATIO MONITORING
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Pub. No.: WO/2019/024830 International Application No.: PCT/CN2018/097688
Publication Date: 07.02.2019 International Filing Date: 28.07.2018
IPC:
H04B 10/079 (2013.01) ,H04B 10/077 (2013.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
10
Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
07
Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
075
using an in-service signal
079
using measurements of the data signal
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
10
Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
07
Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
075
using an in-service signal
077
using a supervisory or additional signal
Applicants:
HUAWEI TECHNOLOGIES CO., LTD. [CN/CN]; Huawei Administration Building, Bantian, Longgang District Shenzhen, Guangdong 518129, CN
Inventors:
JIANG, Zhiping; CA
TANG, Xuefeng; CA
Priority Data:
15/665,35131.07.2017US
Title (EN) SYSTEMS AND METHODS FOR OPTICAL SIGNAL-TO-NOISE RATIO MONITORING
(FR) SYSTÈMES ET PROCÉDÉS DE SURVEILLANCE DE RAPPORT SIGNAL SUR BRUIT OPTIQUE
Abstract:
(EN) A system for monitoring optical signal-to-noise ratio (OSNR) is provided. In some specific examples, the system may use a pilot tone power of a signal modulated with pilot tone to derive the pure signal power and the variance of the whole electric field to derive the total power (pure signal power plus amplified spontaneous emission (ASE) power of the signal). The ASE power can be obtained by subtracting the pure signal power from the total power (ASE + pure signal). Once the ASE power and the pure signal power are known, the OSNR can be calculated.
(FR) L'invention concerne un système de surveillance du rapport signal sur bruit optique (OSNR). Dans certains exemples spécifiques, le système peut utiliser une puissance de tonalité pilote d'un signal modulé avec une tonalité pilote pour obtenir la puissance de signal pur, ainsi que la variance de l'ensemble du champ électrique pour obtenir la puissance totale (puissance de signal pur plus la puissance d'émission spontanée amplifiée (ASE) du signal). La puissance ASE peut être obtenue par la soustraction de la puissance de signal pur de la puissance totale (ASE + signal pur). Une fois que la puissance ASE et la puissance de signal pur sont connues, l'OSNR peut être calculé.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)