opticalfiber
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$550 dock turns a smartphone into a medical lab
Smartphones can now be used as laboratory-grade medical testing devices thanks to new kit designed by the University of Illinois. The transmission-reflectance-intensity (TRI) analyzer attaches to a smartphone to examine blood, urine or saliva samples as reliably as large, expensive equipment, but costs just $550. The technology uses a high-performance spectrometer. First, a fluid sample is illuminated by the phone's internal white LED flash, then the light is collected in an optical fiber. The light is then guided through a diffraction grating into the phone's rear-facing camera, and a reading is provided on-screen.
Optical computing could benefit from new 'whispering gallery' fiber
It's a spooky feature of Grand Central Station that if you whisper something against the wall, your voice can resonate around the perimeter of the building and sneak up on you from behind. The same 'whispering gallery' principle is crucial to next-gen optical computing: light signals have to be sent on extremely circuitous journeys through 'microresonators', which temporarily bottle up the beams and thereby serve as memory. So far, microresonators have generally been made from silicon wafers etched with the a long series of loops. However, even the most precise etching leaves imperfections, which quickly cause the signal to lose its strength and fade away. Now, researchers at OFS Laboratories in Somerset, N. J., have come up with a different type of microresonator that could potentially hold onto light 100 times longer. The new technology diverts light onto a stretch of optic fiber that has been specially manufactured with tiny step-changes in its diameter. When the signal hits this abrupt change, it reverses and goes back the opposite way -- and, if it hits another diameter change, it will effectively enter a whispering gallery inside the fiber, bouncing up and down with only minor attenuation. The OFS scientists claim their microresonator could appear in "specialized devices" in just two or three years, which is good to hear, because electronics is starting to get old.
Alcatel-Lucent plants two flags in Latin American soil: LTE and 100Gb/s cable
Not content with newly arrived iTunes and Netflix, Latin America's growing population of web aficionados are seeing some major investment in high-speed internet services too. Alcatel-Lucent says it's won contracts to provide infrastructure for the region's first LTE network -- in Uruguay, to be precise -- as well as the first 100Gb/s optical cable network, which will soon be streaming telenovelas across Argentina. Welcome to the revolution, compañeros, and read on for the full PR.
IBM demonstrates 160Gbps optical transceiver chipset
Innovative cooling solutions aren't the only things that IBM is showing off of late, as the firm is also demonstrating a wicked fast optical transceiver chipset at the 2007 Optical Fiber Conference. The prototype reportedly has the uncanny ability to "move information at speeds of 160Gbps," which should prove quite useful with all the streaming media we're growing more and more fond of with each passing day. IBM is apparently trying to "make optical connectivity viable for widespread use" by constructing an optical transceiver "with driver and receiver integrated circuits in current CMOS technology," and then adding in a few exotic materials to deliver a package measuring just 3.25- x 5.25-millimeters. As expected, no implementation dates were readily available, but considering that 100G Ethernet is just around the corner, we're sure IBM will have its act together in plenty of time.[Via Playfuls]
