Journal ArticleDOI
Cross-Gain Compression in Semiconductor Optical Amplifiers
TLDR
In this article, a novel scheme that exploits cross-gain modulation (XGM) in semiconductor optical amplifiers (SOAs) without overall pattern effects is presented. But this technique uses two signals with reversed-intensity modulation and different wavelength to exploit propagation and gain-compression dynamics in gain-saturated SOAs at almost constant overall input power.Abstract:
In this paper, we present a novel scheme that exploits cross-gain modulation (XGM) in semiconductor optical amplifiers (SOAs) without overall pattern effects. This technique uses two signals with reversed-intensity modulation and different wavelength to exploit propagation and gain-compression dynamics in gain-saturated SOAs at almost constant overall input power. The resulting cross-gain-compression mechanism between copropagating waves can lead to all-optical waveform reshaping. By using this technique, we experimentally demonstrate enhanced wavelength conversion by XGM and wavelength-preserving noise compression at 10 Gb/sread more
Citations
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Journal ArticleDOI
All-Optical 10 and 40 Gbit/s RZ-to-NRZ Format and Wavelength Conversion Using Semiconductor Optical Amplifiers
TL;DR: In this article, the authors demonstrate that the cross-gain compression (XGC) in a semiconductor optical amplifier can produce effective return to zero (RZ)-to-nonreturn to zero(NRZ) format conversion.
Journal ArticleDOI
All-Optical Wavelength Multicasting in a QD-SOA
Giampiero Contestabile,Akihiro Maruta,Shigeaki Sekiguchi,Ken Morito,Mariko Sugawara,Ken-ichi Kitayama +5 more
TL;DR: In this paper, the effect of four-wave mixing (FWM) among the equally spaced converted signals was investigated and it was shown that the critical number of equally spaced consecutive channels giving significant penalty is 4.
Journal ArticleDOI
All-Optical Wavelength Conversion With Extinction Ratio Improvement of 100 Gb/s RZ-Signals in Ultralong Bulk Semiconductor Optical Amplifiers
TL;DR: In this article, an all-optical wavelength conversion in ultralong semiconductor optical amplifier (UL-SOA) is presented, where cross-gain modulation as well as four-wave mixing (FWM) can be used as wavelength conversion mechanism.
Journal ArticleDOI
Optical Reshaping of 40-Gb/s NRZ and RZ Signals Without Wavelength Conversion
TL;DR: In this paper, a scheme for all-optical reshaping at 40 Gb/s that is wavelength preserving and transparent to both non-return-to-zero and return-tozero on-off keying signals is presented.
Journal ArticleDOI
An InP Monolithically Integrated Unicast and Multicast Wavelength Converter
TL;DR: In this article, a novel Indium Phosphide monolithically integrated optical circuit was proposed for all-optical wavelength conversion. The circuit exploits two cascaded cross gain modulation (XGM) interactions in semiconductor optical amplifiers.
References
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Journal ArticleDOI
All-optical wavelength conversion by semiconductor optical amplifiers
TL;DR: In this article, the influence of saturation filtering on the bandwidth of the converters is explained and conditions for conversion at 20 Gb/s or more are identified for monolithic integrated interferometric wavelength converters.
Patent
Optical fiber cord
Naomi Hatano,Yoshinobu Kimura,Atsushi Oshio,Osamu Saito,Satoru Tsuchiida,悟 土井田,直美 幡野,篤 押尾,吉延 木村,治 齋藤 +9 more
TL;DR: In this paper, an optical fiber cord is made by further covering the coated optical single fiber with a thermoplastic resin, which is provided with cover layers of equal to three or more layers made of the active energy ray curing resin composition hardened film outside the glass core wire.
Journal ArticleDOI
Optical regeneration at 40 Gb/s and beyond
Olivier Leclerc,Bruno Lavigne,E. Balmefrezol,Patrick Brindel,L. Pierre,D. Rouvillain,Frederic Seguineau +6 more
TL;DR: In this article, the basic principles of optical regeneration in optical communication systems and review the current technology alternatives foreseen for future 40-Gb/s transmission system implementation, as investigated in Alcatel Research and Innovation.
Journal ArticleDOI
Reduction of mode partition noise by using semiconductor optical amplifiers
TL;DR: In this paper, the authors demonstrate reduction of the mode partition noise by using a semiconductor optical amplifier (SOA) for spectral filtering of long-wavelength Fabry-Perot (FP) semiconductor lasers.
Journal ArticleDOI
All-optical wavelength conversion using SOA nonlinearities
TL;DR: In this paper, the increasing use of WDM systems in telecommunications networks is highlighted, and the potential role for wavelength conversion in future upgrades of such systems is reviewed, and experimental results obtained at BT Laboratories are used to illustrate the state of the art.