OpticalData
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Researchers have broken the capacity limits of fiber optic networks
You can allay those fears that the fiber optic network that delivers your internet is going to overload. At UC San Diego's Qualcomm Institute, engineers not only broke the supposed limits of fiber optic data transmission — they utterly smashed it, increasing the power of optical signals almost twenty times the base level. Engineers have usually cranked up the power of the signal to send and receive data faster. However, at one point, that power increase starts to create interference, degrading whatever's getting send to the point of not delivering the data at all. As more light is beamed through cases, the amount of interference between carriers increases — at some point, the data becomes so distorted that it can't be untangled and decoded by the receiver. This time, engineers were able to send the information 7,400 miles without the need for pricey electronic regenerators to boost the signal.
IBM's light pulse love affair continues with tiniest nanophotonic switch
Merely months after IBM first inserted silicon nanophotonics into our memory bank, and just weeks after we drooled all over ourselves reading about its green optical link, the mega-corp has chosen St. Patrick's Day to trumpet the development of the "world's tiniest nanophotonic switch." The device, which boasts a footprint "about 100 times smaller than the cross section of a human hair," is said to be a vital part of creating an on-chip optical network. More specifically, it's bringing the gurus behind it one step closer to conjuring up multi-core CPUs that transmit data with light pulses rather than relying on electrical signals on copper wires. This particular switch would essentially divert traffic within the network, ensuring that "optical messages from one processor core could efficiently get to any of the other cores on the chip." Keep on livin' the dream IBM -- just ping us when this stuff is anywhere near ready for the commercial market.
