optical-electrical-optical, o-e-o, that is the only way.
This is called opaque, in contrast to the pure optical
transparent domain. No way that I know of, in the pure
optical transparent domain, stick a traditional TDM
payload, say a DS0, into the Byte stream of photons as
it flies by. SONET/SDH frames, every 125 usec, are
transmitted row by row. You will get a Nobel prize if
you do it ;-))
Now, color or lambda photon streams can be re-directed in
a wavelength re-direction box, a wavelength router but that
has nothing to do with data streams per se as far as packets
are concerned.
I should add, doing bit streams at 10 Gbps, ie OC-192c, in the electrical domain, if you do more than just clock the bits, is a big deal today. Cisco is the only company to date that has accomplished that, ie. ip data packets, routed and encapsulated and framed in an OC-192c envelope. |
