The Experts below are selected from a list of 8229 Experts worldwide ranked by ideXlab platform
Thomas Schneider - One of the best experts on this subject based on the ideXlab platform.
-
Pulse Broadening cancellation in cascaded slow-light delays.
Optics express, 2009Co-Authors: Andrzej Wiatrek, Ronny Henker, Stefan Preußler, Thomas SchneiderAbstract:This article describes a new approach to cancel the Pulse Broadening in a cascaded slow-light system. With the help of a simple experimental setup a method with significant potential to achieve a high Pulse delay at almost zero Pulse Broadening is shown. Since the Pulse reshaping is done inside a single delaying segment, this method can be used in connection with any other Brillouin based slow-light system.
Yinglin Song - One of the best experts on this subject based on the ideXlab platform.
-
fine tuning slow group velocity and small Pulse Broadening of surface plasmon polaritons along metal nonlinear kerr medium interface
Optics Communications, 2013Co-Authors: Xueru Zhang, Yuxiao Wang, Yinglin SongAbstract:Abstract We propose and demonstrate a new method to fine control the group velocity of slow surface plasmon polaritons (SPPs) propagating in a metal–nonlinear Kerr medium (MNKM) waveguide by changing the incident peak electric field intensity. Tunable group velocity results from nonlinear dispersion relationship of waveguide induced by Kerr effect. The validity of this method is confirmed by numerical simulations with the finite-difference time-domain (FDTD). When the Pulse with center wavelength 400 nm and width 240 fs propagates in MNKM waveguide of length 6 μm, the largest Pulse Broadening is only 3.4% of the input Pulse width. Our method offers a new avenue for potential applications of the tunable slow SPP Pulse with small Pulse Broadening.
-
Fine tuning slow group velocity and small Pulse Broadening of surface plasmon polaritons along metal–nonlinear Kerr medium interface
Optics Communications, 2013Co-Authors: Xueru Zhang, Yuxiao Wang, Yinglin SongAbstract:Abstract We propose and demonstrate a new method to fine control the group velocity of slow surface plasmon polaritons (SPPs) propagating in a metal–nonlinear Kerr medium (MNKM) waveguide by changing the incident peak electric field intensity. Tunable group velocity results from nonlinear dispersion relationship of waveguide induced by Kerr effect. The validity of this method is confirmed by numerical simulations with the finite-difference time-domain (FDTD). When the Pulse with center wavelength 400 nm and width 240 fs propagates in MNKM waveguide of length 6 μm, the largest Pulse Broadening is only 3.4% of the input Pulse width. Our method offers a new avenue for potential applications of the tunable slow SPP Pulse with small Pulse Broadening.
Gilson I. Wirth - One of the best experts on this subject based on the ideXlab platform.
-
Deterministic Methodology for Electrical Simulation of BTI Induced Pulse Broadening
IEEE Transactions on Device and Materials Reliability, 2017Co-Authors: Gabriela Firpo Furtado, Thiago Hanna Both, Michele Vieira, Gilson I. WirthAbstract:This paper presents an analysis of the bias temperature instability (BTI) induced Pulse Broadening of single event transients (SETs) in inverter chains. A novel deterministic simulation methodology for BTI, using the trapping/de-trapping framework, is proposed and implemented in a commercial SPICE tool. The developed simulator properly predicts the possibility that an SET Pulse may suffer propagation-induced Pulse Broadening (PIPB). The PIPB was analyzed in terms of supply voltage and input signal frequency. The simulations results are in agreement with experimental results from the literature.
-
Automated analysis of propagation induced Pulse Broadening of single event transients
2016 31st Symposium on Microelectronics Technology and Devices (SBMicro), 2016Co-Authors: Gilson I. Wirth, Michele VieiraAbstract:The propagation of single event transients (SET) is modeled and simulated, considering the significant modifications of the transient Pulse width observed in the literature. We show how to evaluate the impact of Bias Temperature Instability (BTI) on the propagation of SETs in logic circuits with an accurate SPICE simulator developed at our lab, and compare the simulation results to relevant experimental data from the literature. There has been a growing interest in applying automated techniques to analyze the propagation induced Pulse Broadening (PIPB) effects in modern digital circuits. Simulators available to the circuit designer do not predict the possibility that a SET Pulse may suffer PIPB. We present an electrical simulator capable of analyzing the PIPB effect.
Luc Thévenaz - One of the best experts on this subject based on the ideXlab platform.
-
Complete compensation of Pulse Broadening in an amplifier-based slow light system using a nonlinear regeneration element
Optics express, 2009Co-Authors: Sanghooon Chin, Miguel Gonzalez-herraez, Luc ThévenazAbstract:We experimentally demonstrate complete compensation of Pulse Broadening in an amplifier-based slow light system. The configuration of the delay line basically consists of two stages: a conventional Brillouin slow light system and a nonlinear regeneration element. Signal Pulses experienced both time delay and temporal Broadening through the Brillouin delay line and then the delayed Pulses were delivered into a nonlinear optical loop mirror. Due to the nonlinear response of the transmission of the fiber loop, the inevitably broadened Pulses were moderately compressed in the output of the loop, without loss in the capacity to delay the Pulses. The overall result is that, for the maximum delay, the width of the Pulse could be kept below the input width while the time delays introduced by the slow light element were preserved. Using this delay line, a signal Pulse with duration of 27 ns at full width at half maximum was delayed up to 1.3-bits without suffering from signal distortion.
Brian M. Sadler - One of the best experts on this subject based on the ideXlab platform.
-
experimental demonstration of ultraviolet Pulse Broadening in short range non line of sight communication channels
Optics Express, 2010Co-Authors: Gang Chen, Zhengyuan Xu, Brian M. SadlerAbstract:An experimental test-bed using a narrow-Pulsed ultraviolet (UV) laser and high-bandwidth photomultiplier tube was set up to characterize Pulse Broadening effects in short-range non-line-of-sight (NLOS) scattering communication channels. Pulse Broadening is reported as a function of the transmitter elevation angle, transmitter beam angle, receiver elevation angle, receiver field-of-view, and transmitter-receiver distance. The results provide insight into the channel bandwidth and achievable communication data rate.
