Laser Landmark: Silicon device spans technology gap

By Peter Weiss, 15:51 PM April 15, 2008

In technologies ranging from compact disc players to the Internet, circuits that manipulate electrons operate alongside those that manipulate photons. In their quest for faster and less-expensive devices, engineers have wanted to integrate both types of circuits onto single silicon chips. However, silicon's optical properties make such a feat difficult.

Now, researchers in California have made a laser from silicon, achieving an important step toward optoelectronic or even purely photonic chip...

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