Results 51 to 60 of about 51,099 (299)

Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Ludger Overmeyer, Annika Raatz   +5 more
wiley   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

A New Electro-Optical-Thermal Modelling for Non-Dispersive IR Sensing Technique of Gas Concentration

Applied Sciences, 2022
In this research, a new electro-optical-thermal modeling is proposed and built by simulation program with integrated circuit emphasis (SPICE). In particular, it is constructed for use in the non-dispersive infrared (NDIR) sensing technique of gas ...
Chih-Hsiung Shen, Jung-Jie Wu
doaj   +1 more source

High-Performance Hybrid Silicon and Lithium Niobate Mach-Zehnder Modulators for 100 Gbit/s and Beyond

, 2018
Optical modulators are at the heart of optical communication links. Ideally, they should feature low insertion loss, low drive voltage, large modulation bandwidth, high linearity, compact footprint and low manufacturing cost.
Cai, Xinlun, Chen, Hui, Gao, Shengqian, Guo, Changjian, He, Mingbo, Jian, Jian, Liu, Lin, Liu, Liu, Ren, Yuxuan, Ruan, Ziliang, Sun, Shihao, Wen, Xueqin, Xu, Mengyue, Xu, Yongsheng, Yu, Siyuan, Zhou, Lidan   +15 more
core   +1 more source

A dual-polarized quasi-optical SIS mixer at 550 GHz [PDF]

, 2000
In this paper, we describe the design, fabrication, and the performance of a low-noise dual-polarized quasi-optical superconductor-insulator-superconductor (SIS) mixer at 550 GHz.
Chattopadhyay, Goutam, LeDuc, Henry G., Miller, David, Zmuidzinas, Jonas   +3 more
core   +1 more source

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

Advanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger, Helmy Pacheco Hernandez, Yang Cui, Hongxing Hao, Vanessa Ramm, David C. Mayer, Khai‐Nghi Truong, Roland A. Fischer, Jürgen Hauer, Mariana Kozlowska, Alexander Pöthig   +10 more
wiley   +1 more source

Hybrid integrated tunable external cavity laser with sub-10 Hz intrinsic linewidth

APL Photonics
In this work, a hybrid integrated tunable external cavity laser (ECL) with a sub-10 Hz intrinsic linewidth is demonstrated. In this hybrid ECL, two Si3N4-based subwavelength hole defect assisted microring resonators, acting as high-Q laser reflectors ...
Yilin Wu, Shuai Shao, Liwei Tang, Sigang Yang, Hongwei Chen, Minghua Chen   +5 more
doaj   +1 more source

Wavelength Tuning Free Transceiver Module in OLT Downstream Multicasting 4λ × 10 Gb/s TWDM-PON System

Journal of Computer Networks and Communications, 2014
We propose a new architecture of dynamic time-wavelength division multiplexing-passive optical network (TWDM-PON) system that employs integrated all-optical packet routing (AOPR) module using 4λ×10 Gbps downstream signal to support 20 km fiber ...
M. S. Salleh, A. S. M. Supa’at, S. M. Idrus, S. Yaakob, Z. M. Yusof   +4 more
doaj   +1 more source

42dB Loss Budget Hybrid DWDM-CDM-PON without Optical Amplifier

OFC/NFOEC 2007 - 2007 Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference, 2007
An unprecedented 42 dB loss budget is realised, for the first time, by using a hybrid DWDM-CDM (code division multiplexing)-PON without an optical amplifier. 16λ-DWDM-CDM-PON bidirectional transmission over 100 km was experimentally demonstrated. Long-reach PON is expected to reduce capex and opex costs for service providers.
M. Kashima, G.C. Gupta, H. Iwamura, H. Tamai, R. Watanabe, T. Ushikubo, T. Kamijoh   +6 more
openaire   +1 more source

Wavelength switched hybrid TDMA/WDM (TWDM) PON: a flexible next-generation optical access solution [PDF]

, 2012
In this paper, we propose the system concepts of a next-generation wavelength switched hybrid time division multiple access and wavelength division multiplexing (TWDM) passive optical network (PON) architecture. In this architecture, wavelength selective
Colle, Didier, Demeester, Piet, Dixit, Abhishek, Lannoo, Bart, Pickavet, Mario   +4 more
core   +2 more sources