Results 31 to 40 of about 224,841 (297)

Performance Investigation of IM/DD Compatible SSB-OFDM Systems Based on Optical Multicarrier Sources

IEEE Photonics Journal, 2014
The authors investigate and compare the performance of three different optical frequency comb sources in an intensity modulated and directly detected compatible SSB OFDM system.
V. Vujicic, P. M. Anandarajah, R. Zhou, C. Browning, L. P. Barry   +4 more
doaj   +1 more source

Increased emission intensity can compensate for the presence of noise in human click-based echolocation

Scientific Reports, 2021
Echolocating bats adapt their emissions to succeed in noisy environments. In the present study we investigated if echolocating humans can detect a sound-reflecting surface in the presence of noise and if intensity of echolocation emissions (i.e.
J. G. Castillo-Serrano, L. J. Norman, D. Foresteire, L. Thaler   +3 more
doaj   +1 more source

Investigation of Crosstalk between Data Signals and Feed Light in Power-over-Fiber

Photonics, 2022
In power-over-fiber systems, simultaneous data signals and power transmission using a single optical fiber is an attractive step towards simplifying the systems.
Motoharu Matsuura, Arisa Ikukawa, Hayao Kuboki, Yoshiaki Kawamura   +3 more
doaj   +1 more source

Relative intensity noise and intrinsic properties of RF mounted interband cascade laser [PDF]

, 2021
International audienceInterband cascade lasers are semiconductor lasers emitting in the mid-infrared domain but relying on interband transitions, contrary to their intersubband counterparts, quantum cascade lasers.
Didier, P., Cerutti, L., Carras, M., F. Grillot, Baranov, A., Grillot, F., O. Spitz, L. Cerutti, Diaz-Thomas, D., A. N. Baranov, P. Didier, Spitz, O., M. Carras, D. A. Diaz-Thomas   +13 more
core   +1 more source

Relative intensity noise of temperature-stable, energy-efficient 980 nm VCSELs

AIP Advances, 2017
The relative intensity noise (RIN) of temperature-stable, energy-efficient oxide confined vertical-cavity surface-emitting lasers (VCSELs) have been investigated. Low energy consumption data transmission is achieved by using small oxide-aperture diameter
Hui Li, Philip Wolf, James A. Lott, Dieter Bimberg   +3 more
doaj   +1 more source

Relative Intensity Noise of Hybrid Mode-Locked Bound Soliton Fiber Laser: Theory and Experiment

Applied Sciences, 2018
Relative intensity noises (RIN) of mode-locked lasers are properties which are crucial for applications. In the literature, there have been plenty of theoretical/experimental studies on the RIN noises of passive/active single-pulse mode-locked lasers ...
Cheng-Jhih Luo, Yinchieh Lai
doaj   +1 more source

Correlation between emission and relative intensity noise spectral profiles of an Er-doped fiber superfluorescent source

AIP Advances, 2022
The spectral characteristics of the relative intensity noise (RIN) of two amplified spontaneous emission (ASE) sources are experimentally measured. An Er-doped fiber superfluorescent source (EDF-SFS) is investigated and compared with a super-luminescent ...
Xuanchen Guo, Quan Chai, Xueying Zhao, Shaonian Ma, Gui Xiao, Jianzhong Zhang, Elfed Lewis, Gang-Ding Peng   +7 more
doaj   +1 more source

Numerical investigation of relative intensity noise in frequency-doubled multimode fiber lasers [PDF]

, 2021
International audienceIn this paper, we study the intensity noise performance of frequency-doubled lasers. In particular, we investigate how the relative intensity noise (RIN) of multimode fiber lasers is affected by the second harmonic generation ...
Collin, Rodolphe, Besnard, Pascal, Chartier, Thierry   +2 more
core   +1 more source

Attention-dependent modulation of cortical taste circuits revealed by granger causality with signal-dependent noise [PDF]

, 2013
We show, for the first time, that in cortical areas, for example the insular, orbitofrontal, and lateral prefrontal cortex, there is signal-dependent noise in the fMRI blood-oxygen level dependent (BOLD) time series, with the variance of the noise ...
Luo, Qiang, Grabenhorst Fabian, Edmund T. Rolls, Qiang Luo, Luo Qiang, Edmund T Rolls, Grabenhorst, Fabian, Rolls Edmund T., Feng, Jianfeng, Jianfeng Feng, Fabian Grabenhorst, Ge Tian, Ge, Tian, Rolls, Edmund T., Tian Ge, Feng Jianfeng   +15 more
core   +1 more source

Reconstruction and Prediction of Flow Field Fluctuation Intensity and Flow-Induced Noise in Impeller Domain of Jet Centrifugal Pump Using Gappy POD Method

Energies, 2018
To analyze the interrelations among impeller blade geometry, flow field fluctuation intensity and impeller-induced hydrodynamic noise of jet centrifugal pump (JCP), a Gappy proper orthogonal decomposition (POD) method combined with computational fluid ...
Rong Guo, Rennian Li, Renhui Zhang
doaj   +1 more source