Results 71 to 80 of about 220,031 (271)

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source

High-resolution optical frequency dissemination on a telecommunication network with data traffic

, 2009
We transferred the frequency of an ultra-stable laser over a 108 km urban fiber link comprising 22 km of optical communications network fiber simultaneously carrying Internet data traffic.
Anne Amy-Klein, Christian Chardonnet, Fabien Kéfélian, Foreman, Giorgio Santarelli, Haifeng Jiang, Hong, Humphreys, Jiang, Karshenboim, Lopez, Ludlow, Musha, Narbonneau, Newbury, Olivier Lopez, Rosenband, Williams   +17 more
core   +2 more sources

Spatial‐Wavelength Multiplexing Error‐Controlled Photonic Analog Computing System

Advanced Science, EarlyView.
A novel photonic integrated circuit prototype implementing the concept of general‐purpose analog computing and demonstrate its capability in radio frequency applications. The chip features a multichannel architecture and performs fully optical analog computation with frequency‐domain parallel processing. An FPGA‐based error‐correction algorithm aims to
Tao Zhu, Bowen Zhu, Shicheng Zhang, Keren Li, Xianchen Wu, Yazhi Pi, Jie Yan, Daigao Chen, Bingli Guo, Xi Xiao, Lei Wang, Xiaochuan Xu, Xuwei Xue, Shanguo Huang, Zizheng Cao, Shaohua Yu   +15 more
wiley   +1 more source

Design and Research of Photonic Reservoir Computing for Optical Channel Equalization

Photonics
In this paper, photonic reservoir computing chip architectures for noise equalization in optical fiber communication channels are proposed. These architectures leverage optical computing instead of electrical computing to reduce computational pressure at
Xiaoyan Zuo, Li Pei, Bing Bai, Bowen Bai, Jianshuai Wang, Quan Li, Run Yang   +6 more
doaj   +1 more source

A Brief History of Mobile Telecommunication in Europe [PDF]

Since the introduction of mobile telephony in the early fifties in Europe, US and Japan the demand for this service exploded. It seems that the latent demand for mobile telecommunication services for decade's continued to be very strong.
Dunnewijk, Theo, Hultén, Staffan
core  

From Design to Prototype: High‐Sensitivity Tri‐Mode Operation Photodetectors Based on 1T‐2H Hybrid MoS2

Advanced Science, EarlyView.
This work demonstrates a phase‐engineered MoS2 photodetector that dynamically switches among photocapacitive (PCC), photovoltaic (PV), and photoconductive (PC) modes. By transforming the traditionally parasitic capacitance into an active signal source, the device achieves self‐powered, high‐sensitivity detection with a fast response of 19.2 ms, and a ...
Xinyu Li, Daxiu Tang, Jiaxin Guo, Xiao Zhang, Sihan Liu, Yaojun Yu, Qianqian Cheng, Chengwei Gao, Xiaoning Guan, Pengfei Lu, Fei Zhuge, Ying Xie, Changgui Lin, Xiang Shen, Haohai Yu, Huaijin Zhang, Jiyang Wang   +16 more
wiley   +1 more source

Effects of Deceptive Advertising on Consumer Loyalty in Telecommunication Industry of Pakistan [PDF]

This study is an attempt to interrogate the effects of deceptive advertising on consumer loyalty in telecommunication industry of Pakistan. Four variables, Call Charges (CC), Network Coverage (NC), Network Quality (NQ) and Customer Service (CS) were used
Hasan, Syed Akif, Subhani, Muhammad Imtiaz   +1 more
core   +1 more source

Broadband Internet and Social Capital

, 2018
We study how the diffusion of broadband Internet affects social capital using two data sets from the UK. Our empirical strategy exploits the fact that broadband access has long depended on customers' position in the voice telecommunication infrastructure
Geraci, Andrea, Nardotto, Mattia, Reggiani, Tommaso, Sabatini, Fabio   +3 more
core   +1 more source

Emerging Device Applications From Strong Light–Matter Interactions in 2D Materials

Advanced Science, EarlyView.
Two‐dimensional semiconductors enable extremely compact optoelectronic devices such as solar cells, sensors, LEDs, and lasers. Their strong light–matter interactions allow efficient light emission, detection, and energy conversion. This review article discusses the recent progress in integrating these materials with optical cavities and nanostructures ...
Janani Archana K, Kumar Shwetabh, Reyas Ali, Ramji Velayutham, Koustav Das, Abhishek Mondal, Prashant Kumar, Surendra B. Anantharaman   +7 more
wiley   +1 more source

HOLDING A TRIAL VIA PRIVATE TELECOMMUNICATION NETWORK [PDF]

Today the use of telecommunication techniques are becoming more and more important in criminal case cooperation. In recent decades there had been a great shift of perspectives in the field of telecommunication. Modern telecommunication possibilities like
Sándor KARDOS
core