my Bold, seems they don't have a laser either.

Some long-distance telecommunication networks and computing centres have been making use of optical connections for decades. They allow very high bandwidths even over long distances. Through optical fibres, signal propagation is almost lossless and possible across various wavelengths simultaneously: a speed advantage which increasingly benefits both micro- and nanoelectronics. "The integration of optical components is already well advanced in many areas.However, in spite of intensive research, a laser source that is compatible with the manufacturing of chips is not yet achievable," according to the head of Semiconductor Nanoelectronics (PGI-9).