(PhysOrg.com) -- With worldwide Internet data traffic increasing by 50 percent each year, telecommunications companies that handle this digital torrent must be able to economically expand the capacities of their networks ...
Optics & Photonics
Feb 28, 2011
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Harvard researchers have succeeded in creating quantum switches that can be turned on and off using a single photon, a technological achievement that could pave the way for the creation of highly secure quantum networks.
Quantum Physics
Apr 18, 2014
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For centuries, "man-made fibers" meant the raw stuff of clothes and ropes; in the information age, it's come to mean the filaments of glass that carry data in communications networks. But to Yoel Fink, an Associate professor ...
Nanomaterials
Jul 12, 2010
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Engineers at the University of California, Berkeley have built a new photonic switch that can control the direction of light passing through optical fibers faster and more efficiently than ever. This optical "traffic cop" ...
Optics & Photonics
Apr 12, 2019
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138
(Phys.org)—At a time when communication networks are scrambling for ways to transmit more data over limited bandwidth, a type of twisted light wave is gaining new attention. Called an optical vortex or vortex beam, this ...
Optics & Photonics
Jan 8, 2013
6
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Researchers at Oregon State University have designed and fabricated the world's smallest electro-optic modulator, which could mean major reductions in energy used by data centers and supercomputers.
Nanophysics
Jan 22, 2018
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172
Light traveling in an optical fiber loses power over distance. A number of factors are responsible for this power loss, but one that is particularly important at high data rates is the loss that occurs due to changes in light ...
Optics & Photonics
Aug 19, 2011
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Nippon Telegraph and Telephone Corporation has developed an ultra-compact semiconductor laser (LEAP laser) enabling 10-Gbit/s data transmission with the world's lowest energy consumption. The energy consumption for 1-bit ...
Optics & Photonics
May 28, 2013
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The household demand for increased internet bandwidth has grown tremendously because of the popularity of data-intensive internet activities such as movie streaming. Conventional copper telephone lines struggle to meet this ...
Optics & Photonics
Feb 24, 2011
1
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In a new publication from Opto-Electronic Advances the research group of Professor Xiaoyong Hu and Professor Qihuang Gong from School of Physics, Peking University, China, propose a new strategy to realize ultrafast and ultralow-energy-consumption ...
Quantum Physics
Nov 30, 2021
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