MIT researchers cram optical circuitry on a silicon chip

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kynetx @ Feb 14th 2007 10:31AM

Dustin - There are EDFA (erbium-doped fiber amplifiers) that are capable of using the incoming signal as an exciter for a laser, so no OEO conversion is necessary. They are capable of replacing regenerators for all but the longest (trans-oceanic) spans.

Engadget - The equipment is a drop in the bucket compared to the cost of burying fiber in streets and hanging it overhead. A half million to a million dollars for a C.O. worth of equipment capable of handling tens of thousands of customers compared to many, many millions to actually get the fiber to people's houses.

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