Results 41 to 50 of about 648,123 (291)

Optical Communication Without Photons

, 2013
I analyse a recent quantum communication protocol by Salih et al. that allows one to communicate without any particle carrying the information from the sender to the receiver. I show how this can equally be achieved using classical communication.Comment:
Gisin, Nicolas
core   +2 more sources

A Broadband Distributed Vibration Sensing System Assisted by a Distributed Feedback Interferometer

IEEE Photonics Journal, 2018
A distributed vibration-sensing system based on phase-sensitive optical time-domain reflectometry (Φ-OTDR) and distributed feedback interferometer (DFI) with broadband frequency response and high spatial resolution has been proposed and ...
Yuanyuan Shan, Jiayun Dong, Jie Zeng, Siyi Fu, Yinsen Cai, Yixin Zhang, Xuping Zhang   +6 more
doaj   +1 more source

Broadband Photonic Down-Conversion Preprocessor for ADC With Arcsine Equalization

IEEE Photonics Journal, 2020
It is a challenge to convert broadband millimeter-wave signals directly with electronic analog-to-digital converters (ADCs). The photonic down-conversion preprocessor is a promising solution.
Rui Guo, Yankun Li, Chenbo Zhang, Peng Lei, Qing Yin, Xiaopeng Xie, Zhangyuan Chen   +6 more
doaj   +1 more source

Quantum Communication Network Utilizing Quadripartite Entangled States of Optical Field [PDF]

, 2009
We propose two types of quantum dense coding communication networks with optical continuous variables, in which a quadripartite entangled state of the optical field with totally three-party correlations of quadrature amplitudes is utilized.
C. E. Shannon, Changde Xie, Heng Shen, Xiaojun Jia, Xiaolong Su   +4 more
core   +1 more source

Compressing Turbulence Effect in FSO using New Modulation Technique

MATEC Web of Conferences, 2017
Diffusers transmitter modulation to reduce the effect of atmospheric turbulence in free space optical communication system is described in this paper.
Mohamed Nawawi Norizan, Mat Safar Anuar, Rahman Kram Abdul, Rashidi C.B.M., Mohd Nordin Junita   +4 more
doaj   +1 more source

Direct fiber vector eigenmode multiplexing transmission seeded by integrated optical vortex emitters [PDF]

, 2017
Spatial modes have received substantial attention over the last decades and are used in optical communication applications. In fiber-optic communications, the employed linearly polarized modes and phase vortex modes carrying orbital angular momentum can ...
Cai, Xin-Lun, Chen, Shi, Du, Cheng, Klitis, Charalambos, Li, Shi-Mao, Liu, Jun, Mo, Qi, Sorel, Marc, Wang, An-Dong, Wang, Jian, Yu, Si-Yuan, Zhu, Long   +11 more
core   +1 more source

Resolution Enhancement in Coherent Diffraction Imaging Using High Dynamic Range Image

Photonics, 2021
In a coherent diffraction imaging (CDI) system, the information of the sample is retrieved from the diffraction patterns recorded by the image sensor via multiple iterations.
Yuanyuan Liu, Qingwen Liu, Shuangxiang Zhao, Wenchen Sun, Bingxin Xu, Zuyuan He   +5 more
doaj   +1 more source

Optical Fibre Communications

Optica Acta: International Journal of Optics, 1981
A transcript of the proceedings of a meeting of the Royal Signals Institution, held at the School of Signals, Blandford on 31 March 1976.
openaire   +2 more sources

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

Molecular Oncology, EarlyView.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice, Jose I. Lopez, Aitziber Ugalde‐Olano, Maite Zufiaurre, Ianire Astobiza, Natalia Martin‐Martin, Laura Bozal‐Basterra, Saioa Garcia‐Longarte, Amaia Zabala‐Letona, Sofia Rey, Aida Santos‐Martin, Miguel Unda, Ana Loizaga‐Iriarte, Mariona Graupera, Paolo Nuciforo, Arkaitz Carracedo, Isabel Mendizabal   +16 more
wiley   +1 more source

Fiber distributed feedback laser [PDF]

, 1976
Utilizing round optical fibers as communication channels in optical communication networks presents the problem of obtaining a high efficiency coupling between the optical fiber and the laser. A laser is made an integral part of the optical fiber channel
Elachi, C., Evans, G. A., Yeh, C.
core   +1 more source