JP6661263B2 - 光伝送装置、非線形歪み補償方法及び非線形歪み予等化方法 - Google Patents
光伝送装置、非線形歪み補償方法及び非線形歪み予等化方法 Download PDFInfo
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- JP6661263B2 JP6661263B2 JP2014179614A JP2014179614A JP6661263B2 JP 6661263 B2 JP6661263 B2 JP 6661263B2 JP 2014179614 A JP2014179614 A JP 2014179614A JP 2014179614 A JP2014179614 A JP 2014179614A JP 6661263 B2 JP6661263 B2 JP 6661263B2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/58—Compensation for non-linear transmitter output
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
- H04B10/25073—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion using spectral equalisation, e.g. spectral filtering
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
- H04B10/2543—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to fibre non-linearities, e.g. Kerr effect
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/61—Coherent receivers
- H04B10/616—Details of the electronic signal processing in coherent optical receivers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/61—Coherent receivers
- H04B10/616—Details of the electronic signal processing in coherent optical receivers
- H04B10/6163—Compensation of non-linear effects in the fiber optic link, e.g. self-phase modulation [SPM], cross-phase modulation [XPM], four wave mixing [FWM]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/69—Electrical arrangements in the receiver
- H04B10/697—Arrangements for reducing noise and distortion
- H04B10/6971—Arrangements for reducing noise and distortion using equalisation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03343—Arrangements at the transmitter end
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2210/00—Indexing scheme relating to optical transmission systems
- H04B2210/25—Distortion or dispersion compensation
- H04B2210/252—Distortion or dispersion compensation after the transmission line, i.e. post-compensation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2210/00—Indexing scheme relating to optical transmission systems
- H04B2210/25—Distortion or dispersion compensation
- H04B2210/254—Distortion or dispersion compensation before the transmission line, i.e. pre-compensation
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Description
2 光送信器
3 光受信器
4 光伝送路
41 分割部
42 制御部
43 補償部
Claims (10)
- 光伝送信号を電気伝送信号に電気変換する変換部と、
前記電気伝送信号を設定の周波数分割数及び分割帯域幅で複数の周波数成分に分割する分割部と、
前記光伝送信号を伝送する伝送路の伝送路情報及び前記光伝送信号の信号情報に基づき、前記周波数分割数及び前記分割帯域幅を制御する制御部と、
前記分割部で周波数分割された各周波数成分の光学非線形歪みを補償する補償部と
を有することを特徴とする光伝送装置。 - 前記制御部は、
前記伝送路情報に基づいて前記伝送路のFWM効率を算出すると共に、前記信号情報に基づき前記電気伝送信号の受信帯域幅を取得し、前記FWM効率及び前記受信帯域幅に基づき、前記周波数分割数及び前記分割帯域幅を制御することを特徴とする請求項1に記載の光伝送装置。 - 前記制御部は、
前記信号情報内の受信帯域幅、受信チャネル数及びチャネルの周波数間隔に基づき、受信チャネル単位で前記電気伝送信号を分割するように、前記周波数分割数及び前記分割帯域幅を制御することを特徴とする請求項1に記載の光伝送装置。 - 電気伝送信号を光伝送信号に変換する送信側変換部と、
前記電気伝送信号を設定の周波数分割数及び分割帯域幅で複数の周波数成分に分割する送信側分割部と、
前記光伝送信号を伝送する伝送路の伝送路情報及び前記光伝送信号の信号情報に基づき、前記送信側分割部で設定する前記周波数分割数及び前記分割帯域幅を制御する送信側制御部と、
前記送信側分割部で周波数分割された各周波数成分の光学非線形歪みを予等化する予等化部と
を有することを特徴とする請求項1に記載の光伝送装置。 - 光伝送信号を電気伝送信号に電気変換し、
前記電気伝送信号を設定の周波数分割数及び分割帯域幅で複数の周波数成分に分割し、
前記光伝送信号を伝送する伝送路の伝送路情報及び前記光伝送信号の信号情報に基づき、前記周波数分割数及び前記分割帯域幅を制御し、
前記周波数分割された各周波数成分の光学非線形歪みを補償する
処理を実行することを特徴とする非線形歪み補償方法。 - 電気伝送信号を光伝送信号に変換し、
前記電気伝送信号を設定の周波数分割数及び分割帯域幅で複数の周波数成分に分割し、
前記光伝送信号を伝送する伝送路の伝送路情報及び前記光伝送信号の信号情報に基づき、前記電気伝送信号を分割する際に設定する前記周波数分割数及び前記分割帯域幅を制御し、
前記周波数分割された各周波数成分の光学非線形歪みを予等化する
処理を実行することを特徴とする請求項5に記載の非線形歪み補償方法。 - 電気伝送信号を光伝送信号に変換する変換部と、
前記電気伝送信号を設定の周波数分割数及び分割帯域幅で複数の周波数成分に分割する分割部と、
前記光伝送信号を伝送する伝送路の伝送路情報及び前記光伝送信号の信号情報に基づき、前記周波数分割数及び前記分割帯域幅を制御する制御部と、
前記分割部で周波数分割された各周波数成分の光学非線形歪みを予等化する予等化部と
を有することを特徴とする光伝送装置。 - 前記制御部は、
前記伝送路情報に基づいて前記伝送路のFWM効率を算出すると共に、前記信号情報に基づき前記電気伝送信号の送信帯域幅を取得し、前記FWM効率及び前記送信帯域幅に基づき、前記周波数分割数及び前記分割帯域幅を制御することを特徴とする請求項7に記載の光伝送装置。 - 前記制御部は、
前記信号情報内の送信帯域幅、送信チャネル数及びチャネルの周波数間隔に基づき、送信チャネル単位で前記電気伝送信号を分割するように、前記周波数分割数及び前記分割帯域幅を制御することを特徴とする請求項7に記載の光伝送装置。 - 電気伝送信号を光伝送信号に変換し、
前記電気伝送信号を設定の周波数分割数及び分割帯域幅で複数の周波数成分に分割し、
前記光伝送信号を伝送する伝送路の伝送路情報及び前記光伝送信号の信号情報に基づき、前記周波数分割数及び前記分割帯域幅を制御し、
前記周波数分割された各周波数成分の光学非線形歪みを予等化する
処理を実行することを特徴とする非線形歪み予等化方法。
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JP2014179614A JP6661263B2 (ja) | 2014-09-03 | 2014-09-03 | 光伝送装置、非線形歪み補償方法及び非線形歪み予等化方法 |
US14/828,605 US9654224B2 (en) | 2014-09-03 | 2015-08-18 | Optical transmission device, nonlinear distortion compensation method, and nonlinear distortion pre-equalization method |
EP15181957.0A EP2993808B1 (en) | 2014-09-03 | 2015-08-21 | Optical transmission device, nonlinear distortion compensation method, and nonlinear distortion pre-equalization method |
CN201510535613.XA CN105391662B (zh) | 2014-09-03 | 2015-08-27 | 光传输装置、非线性失真补偿方法和非线性失真预均衡方法 |
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US9654224B2 (en) | 2017-05-16 |
CN105391662B (zh) | 2018-12-11 |
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