Andrew Weiner and Daniel Leaird found a way to put a single pulse of light into an arrayed wave guide grating and get a rapid-fire burst of 21 light pulses out of it, with each pulse separated by only two-trillionths of a second. It works similarly to a prism, separating white light by wavelength. The unique properties of the device allow generation of identical, wavelength-shifted pulse trains for communication and photonic signal processing. The discovery could help satisfy demand for increasing network bandwidths. The pair of Purdue University engineers say their device has transmission speeds that are ten times faster than anything currently available. "ISPs are primarily operating at 10 Gbytes/sec per channel, times very many wavelength channels," says Weiner. "Our work can impact higher speed systems, 100 Gbytes/sec per channel and above," he says. Wiener and Laird's idea is to build a module that takes parallel electric data input and converts it into a fast serial optical data stream suitable for fiber transmission. For more information, contact Weiner at firstname.lastname@example.org or call (765) 494-4709.
This year, Design News is getting a head start on the Fourth of July celebration. In honor of our country and its legacy of engineering innovation -- in all of its forms -- we are taking you on an alphabetical tour through all 50 states to showcase interesting engineering breakthroughs and historically significant events.
Earlier this year paralyzed IndyCar drive Sam Schmidt did the seemingly impossible -- opening the qualifying rounds at Indy by driving a modified Corvette C7 Stingray around the Indianapolis Motor Speedway.
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