It seems like every tale of impending bandwidth "disaster" is soon countered by a new bandwidth "breakthrough." In this case, researchers at Intel have been testing a silicon-based Avalanche Photo Detector (APD) (as opposed to the traditional, and rather expensive, indium phosphide), and so far results have been quite promising. On one key metric, something called the "gain-bandwidth product," the APD achieved speeds of 340GHz, or as the gang at Intel puts it, the "best result ever." It is hoped that this product could significantly lower the price of
