Results 61 to 70 of about 6,712,674 (298)

Coherent Optical Technologies for Free-Space Optical Communication and Sensing

, 2011
Coherent optical detection enabled by digital signal processing (DSP) can be applied to free-space optical communication and sensing. Applications including electronic wavefront correction for communication and diffraction-limited laser energy delivery ...
Guifang Li, Li, Guifang
core   +1 more source

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

Advanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj, Roshni Satheesh Babu, Yuxin Xia, Eva Bestelink, Radu Sporea, Nikos Hastas, Ioannis Zeimpekis, Dimitra G. Georgiadou, Sayani Majumdar   +8 more
wiley   +1 more source

Free space optical communication based on a multi-wavelength optical phased array using Fresnel reflection

Applied Physics Express
We report a coherent laser transmitter for free space optical communications based on multiwavelength coherent beam combining. We performed 5.6 Gbps free-space optical communications using a two-element optical phased array with three wavelengths ...
Eisuke Haraguchi, Hitomi Ono, Takahiro Suzuki, Tomohiro Akiyama, Akihiro Fujie, Yuta Takemoto, Toshiyuki Ando   +6 more
doaj   +1 more source

Improving the chromatic dispersion tolerance in long-haul fibre links using the coherent optical orthogonal frequency division multiplexing [PDF]

, 2010
Numerical simulations of the coherent optical orthogonal frequency division multiplexing modems are undertaken to investigate the effect of the adaptive modulation, the number of sub-carriers, the cyclic prefix (CP) length, the clipping ratio ...
Ghassemlooy, Zabih, Ng, Wai Pang, Z. Ghassemlooy, M.A. Jarajreh, Jarajreh, Mutsam Abdel-karim, W.P. Ng   +5 more
core   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

Quantum communication with coherent states and linear optics [PDF]

Physical Review A, 2014
10 pages, 4 ...
Arrazola, Juan Miguel, Lütkenhaus, Norbert   +1 more
openaire   +2 more sources

Radiative Thermal Management for Extreme Environments: Mechanisms and Design Strategies

Advanced Materials, EarlyView.
In this review, we discuss the fundamental mechanisms of radiative cooling and solar heating, material and structural design strategies, hybrid approaches integrating additional heat transfer pathways, and durability‐oriented designs addressing environmental stresses.
Hyung Rae Kim, Haeseong Kim, Joo Hwan Ko, Gil Ju Lee, Dae‐Hyeong Kim, Young Min Song   +5 more
wiley   +1 more source

Trends and enabling technologies on high-speed metro and short-reach optical transmission systems

Dianxin kexue, 2019
The optical fiber communication network is the important infrastructure for the modern information society.Thanks to the reduction of fiber loss,the improvement of transceiver devices by electro-optical-electrical conversion,the development of modulation
Lei ZHANG, Yixiao ZHU, Fan ZHANG, Zhangyuan CHEN   +3 more
doaj   +2 more sources

Sensitive optical free-space receiver architecture for coherent combining of deep-space communication signals through atmospheric turbulence [Elektronisk resurs]

High data rate optical deep space communication links for future space missions need large capture area receivers that can efficiently couple light into a single-mode fiber.
Larsson, Rasmus,, Karlsson, Magnus,, Andrekson, Peter,   +2 more
core   +1 more source

Machine learning concepts in coherent optical communication systems

, 2014
Powerful statistical signal processing methods, used by the machine learning community, are addressed and linked to current problems in coherent optical communication.
Darko Zibar, Christian Schäffer, Schäffer, Christian G., Zibar, Darko   +3 more
core   +1 more source