Results 81 to 90 of about 7,267,132 (287)

Energy-efficient orthogonal frequency division multiplexing-based passive optical network based on adaptive sleep-mode control and dynamic bandwidth allocation

, 2016
We propose an energy-efficient orthogonal frequency division multiplexing-based passive optical network (OFDM-PON) using adaptive sleep-mode control and dynamic bandwidth allocation.
Yuan, Weicheng, Chen, Chen, Qiu, Kun, Zhang, Chongfu, Xiao, Nengwu   +4 more
core   +1 more source

Multimode Oxide‐Based Optoelectronic Memtransistor for In‐Sensor Vision Processing

Advanced Functional Materials, EarlyView.
A multimode optoelectronic memtransistor (OEMT) is demonstrated for vision explainable artificial intelligence (VXAI) hardware. By integrating optical sensing, electrical masking, and non‐volatile memory, the device enables key operations required for generating saliency information.
Min Gu Lee, Geunyoung Kim, Hwa Young Kim, Do Hoon Kim, Hanchan Song, Huisu Noh, Jungwan Noh, Seungwoo Lee, Sang‐Hee Ko Park, Himchan Cho, Kyung Min Kim   +10 more
wiley   +1 more source

Demonstration and Performance Investigation of Hybrid OFDM Systems for Optical Access Network Applications

IEEE Photonics Journal, 2015
We propose a hybrid solution to exploit the capabilities of the optical orthogonal frequency-division multiplexing (OFDM) for passive optical network applications implemented by the electronic generation of the OFDM signal at the transmitter and by the ...
P. Boffi, P. Martelli, P. Parolari, L. Blundetto, J. Morosi, G. Cincott   +5 more
doaj   +1 more source

Operando Tracking of Oxygen‐Vacancy Dynamics and Negative Capacitance in Ca‐Doped BiFeO3

Advanced Functional Materials, EarlyView.
Operando electrochemical impedance spectroscopy, combined with electrocoloration, enables a direct correlation between real‐space ionic redistribution and the corresponding frequency‐domain electrical response. In lateral Ca‐doped BiFeO3 devices, time‐resolved impedance snapshots capture the evolution from bulk‐dominated mixed conduction to an ...
Jeonghun Suh, Heung‐Sik Park, Jong‐Sook Lee, Chan‐Ho Yang   +3 more
wiley   +1 more source

The evolution of Ethernet Passive Optical Network (EPON) and future trends

Optik (Stuttgart), 2018
The tremendous Internet traffic growth has confirmed that the telecommunications backbone is moving aggressively from a time division multiplexing (TDM) orientation to a focus on Ethernet solution. Ethernet PON, which presents the convergence of low-cost
Felix Obite, E. Jaja, Geoffrey Ijeomah, K. I. Jahun   +3 more
semanticscholar   +1 more source

High sensitivity optical coherence detector optimization [PDF]

, 2001
An optimal optical filtering scheme for an optical coherence detection system gives very high detection sensitivities (-30dB) for a partially coherent source.
Coutinho, R.C., French, H.A., Selviah, D.R., H.D. Griffiths, R.C. Coutinho, H.A. French, Griffiths, H.D., D.R. Selviah   +7 more
core   +1 more source

Simultaneous Enhancement of Performance and Stability in Dual‐Gate a‐IGZO Thin‐Film Transistors via Single‐Step Laser Annealing for Capacitor‐Less DRAM

Advanced Functional Materials, EarlyView.
A single‐step laser annealing strategy is presented for dual‐gate a‐IGZO TFTs. The steep thermal gradient induces graded oxygen doping in the channel and simultaneous WOx removal at the contacts, enabling concurrent interface and contact engineering.
Sihyeon Kwon, Junil Kim, Geuntae Park, Minseok Kim, Woohyun Hwang, Wanki Kim, Daewon Ha, Byeongmoon Lee, Jae Eun Jang, Hyuk‐Jun Kwon   +9 more
wiley   +1 more source

Characterization of a novel three-section tunable slotted fabry-perot laser [PDF]

, 2010
A novel three-section tunable slotted-Fabry-Perot laser has been examined. Characterizations of the linewidth, SMSR and RIN indicate that this type of laser may be a suitable source for dynamic networks employing advanced optical modulation ...
Smyth, Frank, J.H. Song, O'Brien, P., K. Shi, Roycroft, Brendan, Corbett, Brian, Song, J.H., F. Smyth, B. Roycroft, Reid, Douglas A., Barry, Liam P., P. O’Brien, D. Reid, B. Corbett, F. H. Peters, O\u27Brien, P., Shi, Kai, Peters, F.H., L. P. Barry   +18 more
core   +3 more sources

Optical Power Budget Analysis of WDM-PON Traffic Protection Schemes

Photonics
To ensure high-quality and reliable service provision for customers, advanced optical networks without active elements have been developed to increase operating reliability, network scalability, and resource efficiency.
Filip Fuňák, Rastislav Róka
doaj   +1 more source

Hybrid free space optical communication system and passive optical network with high splitting ratio for broadcasting data traffic

Journal of Optics, 2018
In this paper, we propose and demonstrate a free space optical (FSO) communication system with 10 Gbit s−1 on-off keying traffic, which is integrated in a passive optical network (PON) for broadcasting wireless data.
C. Yeh, Chong-Sin Gu, Bo-Shen Guo, Yao-Jen Chang, C. Chow, Ming-Chien Tseng, Ruei-Bin Chen   +6 more
semanticscholar   +1 more source