Results 41 to 50 of about 20,099 (257)
IEEE Photonics Journal, 2022 This work presents the use of a directly modulated laser (DML) in time- and wavelength division multiplexed passive optical networks (TWDM-PONs), in which an EDFA-based booster amplification and an SOA-based pre-amplification are utilized to improve the ...
Ahmed Galib Reza +4 more
doaj +1 more source
200 Gbps/λ PON Downstream C-Band Direct-Detection Links with ≥29 dB Power Budget
Applied Sciences, 2022 In this paper we present the simulative analysis of a 200 Gbps per wavelength (λ) 8-level pulse amplitude modulation (PAM-8) downstream communication over up to 20 km single mode fiber (SMF) in C-band based on direct detection (DD) achieving at least a 29 dB link power budget in a PON environment.
Wang H. +5 more
openaire +2 more sources
Advanced Engineering Materials, EarlyView.Low‐temperature imidization of PEG‐modified polyimide enables fully screen‐printed, roll‐to‐roll fabrication of flexible electrodes on PET substrates, delivering robust mechanical durability and reliable ECG/EMG signal performance for wearable electronics.
Akib Abdullah Khan, Jong‐Hoon Kim
wiley +1 more source
Simetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer, 2018 Penelitian ini dilakukan dengan perancangan jaringan Fiber to the home (FTTH) menggunakan teknologi gigabit passive optical network (GPON) dengan melihat parameter power link budget dan redaman yang dihasilkan.
Sunarsan Sitohang, Sabbram Agus Setiawan
doaj +1 more source
Sub-Nanowatt Ultrasonic Bio-Telemetry Using B-Scan Imaging
IEEE Open Journal of Engineering in Medicine and Biology, 2021 Goal: The objective of this paper is to investigate if the use of a B-scan ultrasound imaging system can reduce the energy requirements, and hence the power-dissipation requirements to support wireless bio-telemetry at an implantable device.
Sri Harsha Kondapalli +1 more
doaj +1 more source
SPECTA Journal of Technology, 2023 According to research conducted by Telkom, Telkom has experienced the addition of Indihome users up to 1.01 million users. So the total number of Indihome subscribers reached 8.02 million. The increasing demand for Indihome subscriptions and also the farther the customer's location will be to reach, the longer the Fiber Optic cable used, it is ...
Ifandi Rahmad Riswanto +2 more
openaire +2 more sources
Advanced Engineering Materials, EarlyView.Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch +3 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova +2 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi +3 more
wiley +1 more source
Requirements and Solutions for Robust Beam Alignment in Fiber-Coupled Free-Space Optical Systems
Photonics, 2023 The continuous growth of Internet data traffic is pushing the current radio-frequency wireless technologies up to their physical limits. To overcome the upcoming bandwidth bottleneck, Free-Space Optics (FSO) is currently deemed as a key breakthrough ...
Manuel M. Freitas +4 more
doaj +1 more source