Results 41 to 50 of about 1,129 (234)

Time Delay and Gain Reduction in Reflective Semiconductor Optical Amplifier

, 2018
International audienceAmplification of picosecond optical pulses by reflective semiconductor optical amplifier (RSOA) is theoretically investigated using a high-precision time-domain model. It is demonstrated that, compared to conventional SOA in similar
Jacques W. D. Chi, Chi, Jacques W. D.
core   +1 more source

Oxygen‐Tunnel Indium Tin Oxide Vertical Channel Transistors with Enhanced Current Density and Reliability for Monolithic 3D Compute‐In‐Memory Systems

Advanced Functional Materials, EarlyView.
Oxygen‐tunnel (OT) indium tin oxide (ITO) vertical channel transistors (VCTs) enable reliable, high‐density gain‐cell memory for monolithic 3D integration. A sandwiched SiN/SiO2/SiN OT stack selectively regulates oxygen transport, suppressing parasitic electrode oxidation while stabilizing channel oxygen vacancies, thereby suppressing carrier injection
Hyeonho Gu, Haksoon Jung, Yongwoo Lee, Hoichang Jeong, Yanfeng Zhao, Heesoo Yang, Minho Park, Hyeonjin Lee, Seunghun Baek, Minju Song, Junghwan Kim, Youngmin Jo, Hyunjin Park, Munhyeon Kim, Jae‐Joon Kim, Kyuho Jason Lee, Byungjo Kim, Jimin Kwon   +17 more
wiley   +1 more source

Multicore-Fiber-Enabled WSDM Optical Access Network With Centralized Carrier Delivery and RSOA-Based Adaptive Modulation

IEEE Photonics Journal, 2015
We proposed and experimentally demonstrated a wavelength-space division multiplexing (WSDM) optical access network architecture with centralized optical carrier delivery utilizing multicore fibers (MCFs) and adaptive modulation based on reflective ...
Zhenhua Feng, Borui Li, Ming Tang, Lin Gan, Ruoxu Wang, Rui Lin, Zhilin Xu, Songnian Fu, Lei Deng, Weijun Tong, Shengya Long, Lei Zhang, Hongyan Zhou, Rui Zhang, Shuang Liu, Perry Ping Shum   +15 more
doaj   +1 more source

Toward Tunable Magnetic Dirac Semimetals: Mn Doping of Cd3As2

Advanced Functional Materials, EarlyView.
Dilute magnetic doping of topological semimetals offers a pathway to tune the topological phase via time reversal symmetry breaking. This is achieved by alloying the Dirac semimetal Cd3As2 with Mn via molecular beam epitaxy. Magnetotransport measurements provide preliminary evidence of changes to the electronic structure consistent with the emergence ...
Anthony D. Rice, Ian Leahy, Herve Ness, Andrew G. Norman, Karen N. Heinselman, Chun‐Sheng Jiang, David Graf, Alexey Suslov, Stephan Lany, Mark Van Schilfgaarde, Kirstin Alberi   +10 more
wiley   +1 more source

Integrated optical reflective amplified modulator for indoor millimetre wave radioover-fibre applications [PDF]

, 2017
The use of a 35 GHz reflective electroabsorption modulator (REAM) monolithically integrated with a semiconductor optical amplifier (SOA) for indoor wideband analogue applications is demonstrated. Unlike REAMs, good performances over a wide range of input
Cao, Z., Tangdiongga, E Eduward, Tangdiongga, E.; id_orcid, Tessema, NM Netsanet, Zantvoort, JHC Johan van, Mekonnen, K.A., Tangdiongga, E., van Zantvoort, J.H.C., Mekonnen, KA Ketemaw, Koonen, AMJ Ton, Cao, Z Zizheng, Tessema, N.M., Koonen, A.M.J.   +12 more
core   +1 more source

Unraveling the Electronic Structure of Silicon Vacancy Centers in 4H‐SiC

Advanced Functional Materials, EarlyView.
The electronic structure of the silicon vacancy in 4H‐SiC is probed via transient absorption spectroscopy, uncovering previously inaccessible excited states of the quartet and doublet spin channels, including the V2' transition. In combination with theoretical analysis, a comprehensive picture of the electronic structure is established.
Ali Tayefeh Younesi, Minh Tuan Luu, Christopher Linderälv, Vytautas Žalandauskas, Marianne Etzelmüller Bathen, Nguyen Tien Son, Takeshi Ohshima, Gergő Thiering, Lukas Razinkovas, Ronald Ulbricht   +9 more
wiley   +1 more source

Model simulations of a reflective semiconductor optical amplifier at modulation speeds up to 10 Gb/s

, 2005
We develop a model and peifonn simulations on the basis of rate equations for a reflective semiconductor optical amplifier. The latter will be used as part of a transceiver device for fiber-to-the-home applications. Simulation results for bulk amplifiers
Allaart, K., Bette, S., Lenstra, D., Mégret, P., Iersel, van, M.M., Wuilpart, M., Staquet, N.   +6 more
core   +1 more source

Subscription-based video broadcasting over a WDM passive optical network using a reflective semiconductor optical amplifier/modulator

, 2006
European Conference on Optical Communication (ECOC)We propose and experimentally demonstrate selective digital video broadcasting over a WDM PON by the use of laser bias control, time division multiplexing of voice/data and digital video signals, and ...
Khanal, M, Chae, CJ, Tucker, RS
core   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

Advanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas, Marzia Dulal, Sophia K. Novoselov, Victoria K. Novoselov, Kostya S. Novoselov, Shaila Afroj, Nazmul Karim   +6 more
wiley   +1 more source

Stability of a III-V/Si hybrid laser with a frequency-selective SiN mirror [PDF]

, 2022
We study the stability of a hybrid laser source consisting of a III-V reflective semiconductor optical amplifier (RSOA) edge-coupled to a silicon photonic mirror, based on two coupled high-Q microring resonators, providing a narrow band effective ...
Lorenzo L. Columbo, Jock Bovington, Dominic Siriani, Garcia, SR, Columbo, LL, Mariangela Gioannini, Bovington, J, Siriani, D, Gioannini, M, Cristina Rimoldi, Sebastian Romero-Garcia, Rimoldi, C   +11 more
core   +1 more source