Journal ArticleDOI
A polarization-independent and contrast-ratio-enhancing module for all-optical wavelength shifting using SOA's
TLDR
In this article, a polarization independent and contrast-ratio-enhancing all-optical wavelength shifting module using polarization-dependent SOA's is presented. But the performance of this module is limited to upshifting over 19 nm at 1 Gb/s.Abstract:
We demonstrate a polarization-independent and contrast-ratio-enhancing all-optical wavelength shifting module using polarization-dependent SOA's. When comparing our robust module to a single polarization-dependent SOA wavelength shifter, we reduce the polarization dependence from 3.5-0.5 dB and the contrast-ratio-induced power penalty from 5-1.5 dB when upshifting over 19 nm at 1 Gb/s.read more
Citations
More filters
Journal ArticleDOI
Performance analysis of wavelength converters based on cross-gain modulation in semiconductor-optical amplifiers
TL;DR: In this paper, an analytical theory describing all-optical wavelength converters based on cross-gain modulation (XGM) in semiconductoroptical amplifiers is derived, which consists of two parts: a large-signal analysis yielding the transmission function for the signal, and a small signal analysis in order to describe the transformation of the signal and probe intensity noise.
Journal ArticleDOI
Double-stage cross-gain modulation in SOAs: an effective technique for WDM multicasting
TL;DR: In this article, an optical circuit capable of multi-wavelength conversion is presented. But the circuit structure is intrinsically stable and polarization independent, and its working principle relies on synchronous double-stage cross-gain modulation between an incoming data-modulated signal and several local continuous wave lasers.
Journal ArticleDOI
Cross-Gain Compression in Semiconductor Optical Amplifiers
TL;DR: 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.
Journal ArticleDOI
Reshaping capability of cross-gain compression in semiconductor amplifiers
TL;DR: A novel scheme for all-optical regeneration that exploits the reshaping properties of cross-gain compression between two logically inverted signals in a gain-saturated semiconductor optical amplifier and produces a wavelength-converted copy of the input signal.
Journal ArticleDOI
Tunable optical wavelength converters with reconfigurable functionality
C.C. Wang,Rodney S. Tucker +1 more
TL;DR: In this article, the authors proposed novel circuits for tunable all-optical wavelength converters with reconfigurable functionality, for both copropagating and counterpropagating pump and probe signals.
References
More filters
Journal ArticleDOI
A scalable multiwavelength multihop optical network: a proposal for research on all-optical networks
C.A. Brackett,A.S. Acampora,J. Sweitzer,Gregory L. Tangonan,M.T. Smith,W. Lennon,Ke Wang,R.H. Hobbs +7 more
TL;DR: In this article, an architectural approach for very high-capacity wide-area optical networks is presented, and a proposed program of research to address key system and device issues is described, where a distributed optical interconnect that is wavelength-selective and electronically controllable, permitting the same limited set of wavelengths to be reused among other access stations, is employed.
Journal ArticleDOI
1.5 µm GaInAsP traveling-wave semiconductor laser amplifier
T. Saitoh,T. Mukai +1 more
TL;DR: In this article, the authors presented a theoretical and experimental study in terms of small-signal gain, signal gain saturation, and noise characteristics of a 1.5 μm GaInAsP traveling-wave amplifier (TWA), realized through the application of SiO x film antireflection coatings.
Journal ArticleDOI
Optimal spectral and power parameters for all-optical wavelength shifting: single stage, fanout, and cascadability
Alan E. Willner,William Shieh +1 more
TL;DR: In this article, the extinction and signal-to-noise ratios for a wavelength-shifted signal are determined by accounting for gain saturation and spectral shifting which occur due to the depletion of the injected carrier density.
Journal ArticleDOI
140 Mbit/s DPSK transmission using an all-optical frequency convertor with a 4000 GHz conversion range
TL;DR: In this article, a new method of optical frequency conversion was described and demonstrated by a 140 Mbit/s DPSK optical transmission experiment with a fibre-to-fibre efficiency of −10dB.
Journal ArticleDOI
Bit error rate performance for wavelength conversion at 20 Gbit/s
TL;DR: In this article, the authors achieved wavelength conversion at 20 Gbit/s using cross gain-compression in a semiconductor optical amplifier, achieving the first time for any wavelength conversion scheme.