Pre- and Post-Dispersion Compensation in Long-Haul WDM Transmission System
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概要
- 論文の詳細を見る
In long-haul wavelength-division-multiplexed(WDM)transmission systems, signals with shorter and longer wavelengths have self-phase modulation group-velocity-dispersion(SPM-GVD)penalty caused by to the dispersion slope even after the dispersion-compensation at the receiver has been optimized.As a countermeasure, we have already proposed both pre-compensation and post-compensation of chromatic dispersion at the transmitter and receiver for each channel.This method can decrease the channel variation of path-averaged chromatic dispersion along the transmission line, and it can improve the eye opening of the waveform after transmission.We investigated the optimized parameter of chromatic dispersion and chirping at the transmitter.The optimized pre-dispersion compensation parameter R was about 50%.The optimized chirping parameter α was about 3 when the signal wavelength was less than the mean zero-dispersion wavelength.In a single-channel, 5.3-Gbit/s NRZ signal transmission experiment over a 4, 760-km straight line, this method decreased SPM-GVD penalty.In a 32-channel, 5.3-Gbit/s WDM transmission experiment over 9, 879km using a circulating loop, this method improved Q-factors for the 1st and 32nd channels by more than 1.5dB.
- 社団法人電子情報通信学会の論文
- 2000-07-25
著者
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Naito Takao
The Authors Are With Optoelectronic Systems Laboratory Network System Laboratories Fujitsu Laborator
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NAITO Takao
Optoelectronic Systems Laboratory, Network System Laboratories, FUJITSU LABORATORIES LTD.
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TERAHARA Takafumi
Optoelectronic Systems Laboratory, Network System Laboratories, FUJITSU LABORATORIES LTD.
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SHIMOJOH Naomasa
Optoelectronic Systems Laboratory, Network System Laboratories, FUJITSU LABORATORIES LTD.
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YORITA Takashi
Optoelectronic Systems Laboratory, Network System Laboratories, FUJITSU LABORATORIES LTD.
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CHIKAMA Terumi
Optoelectronic Systems Laboratory, Network System Laboratories, FUJITSU LABORATORIES LTD.
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SUYAMA Masuo
Optical Submarine Transmission Division, FUJITSU LIMITED
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SUYAMA Masuo
The author is with Optical Submarine Transmission Division, Fujitsu Limited
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Suyama M
The Author Is With Optical Submarine Transmission Division Fujitsu Limited
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Yorita Takashi
Optoelectronic Systems Laboratory Network System Laboratories Fujitsu Laboratories Ltd.
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Chikama T
Fujitsu Lab. Ltd. Kawasaki‐shi Jpn
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Chikama Terumi
The Authors Are With Optoelectronic Systems Laboratory Network System Laboratories Fujitsu Laborator
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Chikama Terumi
Optoelectronic Systems Laboratory Fujitsu Laboratories Ltd.
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Chikama Terumi
Department Of Physics Faculty Of Science University Of Tokyo:fujitsu Laboratories Ltd.
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Tanaka Tsuyoshi
Semiconductor Device Research Center Semiconductor Company Matsushita Electric Industrial Co. Ltd.
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Shimojoh Naomasa
The Authors Are With Optoelectronic Systems Laboratory Network System Laboratories Fujitsu Laborator
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Terahara Takafumi
The Authors Are With Optoelectronic Systems Laboratory Network System Laboratories Fujitsu Laborator
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Tanaka T
Semiconductor Device Research Center Semiconductor Company Matsushita Electric Industrial Co. Ltd.
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