A genetic algorithm based approach to fiber design for high coherence and large bandwidth supercontinuum generation [PDF]
, 2009 We present a new approach to the design of optical microstructured fibers that have group velocity dispersion (GVD) and effective nonlinear coefficient (gamma ) tailored for supercontinuum (SC) generation.
Alfano +38 more
core +2 more sources
The impact of spike timing variability on the signal-encoding performance of neural spiking models [PDF]
, 2002 It remains unclear whether the variability of neuronal spike trains in vivo arises due to biological noise sources or represents highly precise encoding of temporally varying synaptic input signals. Determining the variability of spike timing can provide
Koch, Christof +2 more
core +1 more source
Evidence for adjustable bandwidth orientation channels
Frontiers in Psychology, 2014 The standard model of early vision claims that orientation and spatial frequency are encoded with multiple, fixed-bandwidth, and approximately independent channels. The standard model was developed from observer data that used deterministic patterns such
Christopher Patrick Taylor +2 more
doaj +1 more source
Group-delay measurement of frequency-converting devices using a comb generator [PDF]
, 2010 We propose a new method for the measurement of (group) delay from the radio-frequency (RF) input to the intermediate-frequency (IF) output of a mixer or a receiver.
Hoy, M., Scott, Jonathan B.
core +2 more sources
Communication-efficient Distributed Multi-resource Allocation
, 2018 In several smart city applications, multiple resources must be allocated among competing agents that are coupled through such shared resources and are constrained --- either through limitations of communication infrastructure or privacy considerations ...
Alam, Syed Eqbal +3 more
core +1 more source
Optimization and performance of an optical cardio-magnetometer [PDF]
, 2004 Cardiomagnetometry is a growing field of noninvasive medical diagnostics that has triggered a need for affordable high-sensitivity magnetometers. Optical pumping magnetometers are promising candidates satisfying that need since it was demonstrated that ...
Alexandrov +16 more
core +2 more sources
Design of Novel Reconfigurable Filter With Simultaneously Tunable and Switchable Passband
IEEE Access, 2019 This paper presents a new loading scheme for adding the varactor and PIN diodes into a quarter-wavelength (λ/4) resonator. Based on this, a novel reconfigurable filter with simultaneously tunable and switchable passband is introduced.
Yu-Jing Zhang, Jing Cai, Jian-Xin Chen
doaj +1 more source
Efficient Distributed Estimation of Inverse Covariance Matrices
, 2016 In distributed systems, communication is a major concern due to issues such as its vulnerability or efficiency. In this paper, we are interested in estimating sparse inverse covariance matrices when samples are distributed into different machines.
Arroyo, Jesús, Hou, Elizabeth
core +1 more source
Generation of degenerate, factorizable, pulsed squeezed light at telecom wavelengths [PDF]
, 2011 We characterize a periodically poled KTP crystal that produces an entangled, two-mode, squeezed state with orthogonal polarizations, nearly identical, factorizable frequency modes, and few photons in unwanted frequency modes.
Adriana Lita +40 more
core +2 more sources
High Bandwidth Atomic Magnetometery with Continuous Quantum Non-demolition Measurements
, 2010 We describe an experimental study of spin-projection noise in a high sensitivity alkali-metal magnetometer. We demonstrate a four-fold improvement in the measurement bandwidth of the magnetometer using continuous quantum non-demolition (QND) measurements.
E. B. Aleksandrov +5 more
core +1 more source