Results 101 to 110 of about 5,951 (304)

Performance Investigations of InAs/InP Quantum-Dash Semiconductor Optical Amplifiers with Different Numbers of Dash Layers. [PDF]

Micromachines (Basel), 2023
Mao Y, Xie X, Song C, Lu Z, Poole PJ, Liu J, Toreja M, Qi Y, Liu G, Barrios P, Poitras D, Weber J, Zhao P, Vachon M, Rahim M, Ma P, Chen S, Atieh A.   +17 more
europepmc   +1 more source

Polymorph‐Specific Electronic Transduction in WO3 during Molecular Sensing

Advanced Materials, EarlyView.
Metal‐oxide polymorphs with similar surface chemistry can nevertheless exhibit distinct sensing properties. In γ‐ and ε‐WO3, analyte adsorption appears comparable; yet, only ε‐WO3 induces a pronounced lattice electronic perturbation that accommodates charge in sub‐conduction band minimum states.
Matteo D'Andria, Meng Yin, Stefan Neuhauser, Vlasis G. Mavrantzas, Ying Chen, Ken Suzuki, Andreas T. Güntner   +6 more
wiley   +1 more source

On-Chip Optical Vector Quadrature De-Multiplexer Proposal for QAM De-Aggregation by Single Bi-Directional SOA-Based Phase-Sensitive Amplifier

IEEE Access, 2019
In this paper, a simple optical vector quadrature de-multiplexer (QD) scheme is proposed for de-aggregating input 10 Gbaud 16/32/64 quadrature amplitude modulation (QAM) signals into two pulse amplitude modulation (PAM) streams.
Jiabin Cui, Guo-Wei Lu, Hongxiang Wang, Yuefeng Ji   +3 more
doaj   +1 more source

Semiconductor optical amplifiers for underwater optical wireless communications

IET Optoelectronics, 2017
Underwater optical wireless communications (UOWC) systems have recently received significant attention as an attractive solution for both research and commercial use because of their ability to provide high bandwidth communications over relatively short transmission spans along with their low operational cost. However, high absorption and scattering of
Peppas, Kostas, Boucouvalas, Anthony, Ghassemlooy, Zabih, Khalighi, Mohammad Ali, Yiannopoulos, Kostas, Sagias, Nikos   +5 more
openaire   +2 more sources

Universal Conductance Fluctuations in Quantum Anomalous Hall Insulators

Advanced Materials, EarlyView.
Universal conductance fluctuations are observed in mesoscopic quantum anomalous Hall insulators. Two distinct fluctuation patterns are identified, arising from different interference processes of bulk and chiral edge states, respectively. These findings unveil rich quantum interference phenomena in quantum anomalous Hall insulators and provide insights
Peng Deng, Peng Zhang, Gang Qiu, Ting‐Hsun Yang, Chang Niu, Yaochen Li, Wenqiang Cui, Yang Feng, Peide D. Ye, Ke He, Kai Chang, Kang L. Wang   +11 more
wiley   +1 more source

Nonlinear polarization rotation in semiconductor optical amplifiers : theory and application to all-optical flip-flop memories [PDF]

, 2003
We present a model for polarization-dependent gain saturation in strained bulk semiconductor optical amplifiers. We assume that the polarized optical field can be decomposed into transverse electric and transverse magnetic components that have indirect ...
Hill, M.T., Liu, Y., Hill, MT Martin, Hill, M. T., Liu, Y Yong, Lenstra, D.; id_orcid, Lenstra, D Daan, Lenstra, D., Khoe, GD Giok-Djan, Liu, Y.S., Khoe, G.D., Dorren, HJS Harm, Dorren, H.J.S.   +12 more
core   +1 more source

Ultrafast Vertical Organic Electrochemical Transistors With Ion‐Permeable Conductive Polymer Top Electrodes

Advanced Materials, EarlyView.
Vertical organic electrochemical transistors (vOECTs) are limited in speed by ion‐impermeable metal electrodes that slow ion injection. Using ion‐permeable PBFDO top electrodes allows direct vertical ion injection into BBL channels, achieving high current densities (>400 A cm−2), large on/off ratios (>106), and ultrafast switching in 28 µs. This sets a
Han‐Yan Wu, Yingxue An, Luigi Fabiano, Qifan Li, Qingqing Wang, Feng Zhang, Wenlong Jin, Miao Xiong, Junpeng Ji, Ugo Bruno, Grzegorz Greczynski, Grazia Maria Lucia Messina, Xianjie Liu, Chi‐Yuan Yang, Simone Fabiano   +14 more
wiley   +1 more source

Field-trial of an all-optical PSK regenerator/multicaster in a 40 Gbit/s, 38 channel DWDM transmission experiment [PDF]

, 2012
The performance of future ultra-long haul communication systems exploiting phase-encoded signals is likely to be compromised by noise generated during signal transmission.
Joseph Kakande, Josef Vojtech, David J. Richardson, Bogris, Adonis, Slavík, Radan, Vojtěch, Josef, Phelan, Richard, Richardson, David J., Lars Gruner-Nielsen, Kakande, Joseph, Francesca Parmigiani, Richard Phelan, Dimitris Syvridis, Parmigiani, Francesca, Periklis Petropoulos, Grüner-Nielsen, Lars, Syvridis, Dimitris, Petropoulos, Periklis, Adonis Bogris, Radan Slavik   +19 more
core   +1 more source

Ultra-fast charge carrier dynamics across the spectrum of an optical gain media based on InAs/AlGaInAs/InP quantum dots

AIP Advances, 2017
The charge carrier dynamics of improved InP-based InAs/AlGaInAs quantum dot (QD) semiconductor optical amplifiers are examined employing the multi-wavelength ultrafast pump-probe measurement technique.
I. Khanonkin, A. K. Mishra, O. Karni, V. Mikhelashvili, S. Banyoudeh, F. Schnabel, V. Sichkovskyi, J. P. Reithmaier, G. Eisenstein   +8 more
doaj   +1 more source

Monolithic Multiband Nanosecond Programmable Wavelength Router

IEEE Photonics Journal, 2010
A compact scalable reconfigurable multiwavelength router is proposed and demonstrated using an electronically gated cyclic router. Simultaneous wavelength-multiplexed channel allocation is performed with power penalties of 0.2-0.8 dB.
A. Rohit, K. A. Williams, X. J. M. Leijtens, T. de Vries, Y. S. Oei, M. J. R. Heck, L. M. Augustin, R. Notzel, D. J. Robbins, M. K. Smit   +9 more
doaj   +1 more source