News tagged with optical communications fiber
Technology convergence may widen the digital divide
(Phys.org) -- Technology is helping communication companies merge telephone, television and Internet services, but a push to deregulate may leave some customers on the wrong side of the digital divide during this convergence, ...
May 17, 2012 |
5 / 5 (2) |
0
Lenses can bend light and sound in almost any direction
(PhysOrg.com) -- When an optical fiber is bent by 90° or more, the light begins to leak away, posing a problem for fiber optics communications. But by using special lenses that can bend light by not only ...
Apr 02, 2012 |
4.2 / 5 (12) |
17
|
HELIOS makes silicon breakthrough
Researchers in Europe have succeeded in presenting an integrated tuneable transmitter on silicon - the first time this has ever happened. This results are an outcome of the HELIOS ('Photonics electronics functional ...
Mar 30, 2012 |
4.9 / 5 (10) |
0
The world’s fastest Y-00 stream cipher transmission at 40 Gbit/sec over 120 km
Fumio Futami at Tamagawa University, Quantum ICT Research Institute, announced the world first transmission of the stream cipher by Yuen 2000 protocol (Y-00) at the bit rate of 40 Gbit/sec over 120 km.
Mar 06, 2012 |
5 / 5 (3) |
0
Graphene-based optical modulators poised to break speed limits in digital communications
In yet another astounding application of the "wonder material" graphene, scientists at the University of California, Berkeley discovered that it makes an excellent active media for optical modulators. Graphene-based modulators ...
Nanotechnology / Nanomaterials
Mar 01, 2012 |
5 / 5 (2) |
0
Researchers produce ultra-short light pulses using on-chip microresonator
(PhysOrg.com) -- Researchers from the NIST Center for Nanoscale Science and Technology and Purdue University have designed and fabricated an on-chip microresonator that converts continuous laser light into ultra-short pulses ...
Jan 19, 2012 |
not rated yet |
0
First implementation of 100 and 40Gbps ultra-high-speed plug-and-play optical communications
Nippon Telegraph and Telephone Corporation and NTT Communications Corporation have conducted 100 and 40Gbps transmission tests in real field environments using existing installed optical fiber, and have demonstrated ...
Nov 24, 2011 |
4.8 / 5 (4) |
11
Two groups develop 100 terabit fiber cable
(PhysOrg.com) -- Working separately on two different types of technology, two groups have developed a type of fiber cable capable of delivering over 100 terabits of data per second; several orders of magnitude higher than ...
May 02, 2011 |
5 / 5 (7) |
9
|
Team achieves one terabit per second data rate on a single integrated photonic chip
(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 ...
Feb 28, 2011 |
4.2 / 5 (5) |
2
|
Physicists break color barrier for sending, receiving photons
University of Oregon scientists have invented a method to change the color of single photons in a fiber optic cable. The laser-tweaked feat could be a quantum step forward for transferring and receiving high ...
Sep 30, 2010 |
4.3 / 5 (10) |
1
|
FCC to expand use of Internet subsidies in schools
(AP) -- The Federal Communications Commission wants to get more bang from the federal dollars that subsidize Internet access in schools and libraries by lifting some of the restrictions that come with the funds.
Sep 21, 2010 |
not rated yet |
0
'Slow light' on a chip holds promise for optical communications
A tiny optical device built into a silicon chip has achieved the slowest light propagation on a chip to date, reducing the speed of light by a factor of 1,200 in a study reported in Nature Photonics (published online Septem ...
Sep 05, 2010 |
4.7 / 5 (16) |
1
|
Fibers that can hear and sing
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 ...
Nanotechnology / Nanomaterials
Jul 12, 2010 |
4.6 / 5 (11) |
0
|
An optical traffic cop for rapid communication
It looks like a piece of gel that slips into the sole of your sneaker, but it's a new nano-based technology that can make computers and the Internet hundreds of times faster -- a communications technology "enabler" that may ...
May 03, 2010 |
4.5 / 5 (4) |
0
Verizon winds down expensive FiOS expansion
(AP) -- If Verizon Communications Inc. hasn't already started wiring your city or town with its FiOS fiber-optic TV and broadband service, chances are you won't get it.
Mar 26, 2010 |
not rated yet |
3
