Journal ArticleDOI
All-optical switching and pulse routing in a distributed-feedback waveguide device
TLDR
Results of all-optical switching and pulse-routing experiments with a distributed-feedback multiple-quantum-well (MQW) nonlinear waveguide, operating at 1.55microm, are reported.Abstract:
Results of all-optical switching and pulse-routing experiments with a distributed-feedback multiple-quantum-well (MQW) nonlinear waveguide, operating at 1.55 µm, are reported. The MQW material has been engineered, through the controlled introduction of defects, to lower the carrier lifetime from 2.5??ns to 280??ps. The energy required for switching is of the order of 1??pJ or less, the switching time is ?600 ps, and the on–off contrast exceeds 17??dB.read more
Citations
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Journal ArticleDOI
Nonlinear propagation effects in an AlGaAs Bragg grating filter
P. Millar,R.M. De La Rue,Thomas F. Krauss,J.S. Aitchison,Neil G. R. Broderick,David J. Richardson +5 more
TL;DR: Experimental observations of nonlinear propagation effects in an integrated AlGaAs waveguide filter are presented, associated with the counterbalancing effects of self-phase modulation and the large dispersion effects introduced by the grating itself.
Journal ArticleDOI
All-optical time-division demultiplexing and spatial pulse routing with a GaAs/AlGaAs microring resonator.
T.A. Ibrahim,Vien Van,P.-T. Ho +2 more
TL;DR: What is to the authors' knowledge the first demonstration of all-optical time-division demultiplexing and spatial pulse routing in a compact nonlinear GaAs/AlGaAs microring resonator operating at 1.55 microm is reported.
Journal ArticleDOI
Lightwave switching in semiconductor microring devices by free carrier injection
TL;DR: In this article, the authors demonstrate lightwave switching in laterally coupled GaAs-AlGaAs microring resonators by free carrier injection, where the ring waveguide is optically pumped just above its bandgap energy, which results in a temporal tuning of the resonant wavelengths by the induced free carriers.
Journal ArticleDOI
Field-induced Coulomb coupling in semiconductor macroatoms: Application to single-electron quantum devices
Irene D'Amico,Fausto Rossi +1 more
TL;DR: In this paper, an approach for the control of exciton-exciton Coulomb coupling in semiconductor macroatoms/molecules is proposed, which can induce or reinforce excitonic dipoles.
Journal ArticleDOI
All-optical switching in a distributed-feedback GaInAsP waveguide.
K. Nakatsuhara,Tetsuya Mizumoto,Eiji Takahashi,Sainul Hossain,Yoshikazu Saka,Byongjin Ma,Yoshiaki Nakano +6 more
TL;DR: The characteristics of all-optical switching in a waveguide device with a distributed-feedback structure were experimentally investigated and the all- optical set-reset operation and threshold operation were obtained.
References
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Journal ArticleDOI
Linear and nonlinear optical properties of semiconductor quantum wells
TL;DR: In this paper, the experimental and theoretical investigations of the linear and nonlinear optical properties of semiconductor quantum well structures, including the effects of electrostatic fields, extrinsic carriers and real or virtual photocarriers, are reviewed.
Journal ArticleDOI
Theory of bistability in nonlinear distributed feedback structures
TL;DR: In this article, the authors show that optical bistability can occur in a distributed feedback structure with an intensity-dependent refractive index, and analyze expressions for the transmissivity.
Journal ArticleDOI
Third order nonlinear integrated optics
TL;DR: In this paper, the authors review progress in the application of nonlinear optical phenomena to integrated optics and present a new class of phenomena based on large nonlinear changes in waveguide properties.
Journal ArticleDOI
All‐optical switching in a nonlinear periodic‐waveguide structure
TL;DR: In this paper, the first observation of all-optical switching in a nonlinear periodic waveguide structure was made at 1.064 μm and at energies ranging from 1 to 18 μJ/pulse using a Nd:YAG pulsed laser.
Journal ArticleDOI
Femtosecond ac Stark effect in semiconductor quantum wells: Extreme low- and high-intensity limits.
TL;DR: In quasi-2D GaAs quantum wells, below-resonance low-intensity excitation produces a pure shift of the excitons, contrary to ac Stark shifts in atomic systems, at high pump intensities two-photon 3D-real-carrier generation competes with the virtual 2D-exciton effects.