Mikael Abrahamsson wrote: > On Wed, 9 Jan 2008, Gert Doering wrote: > >> What are "optical circulators"? > > http://en.wikipedia.org/wiki/Optical_circulator > > "An optical circulator is a special fiber-optic component that can be > used to separate optical powers that travel in opposite directions in > one single optical fiber, analogous to the operation of an electronic > circulator. An optical circulator is a three-port device that allows > light to travel in only one direction—from port 1 to port 2, then from > port 2 to port 3. This means that if some of the light emitted from port > 2 is reflected back to the circulator, it is directed not back to port > 1, but on to port 3. Circulators can also be used to achieve > bi-directional transmission over a single fiber. Because of its high > isolation of the input and reflected optical powers and its low > insertion loss, optical circulators are widely used in advanced > communication systems and fiber-optic sensor applications."
I may be over-simplifying this a bit but this description of an optical circulator read like it's a manual WDM implementation. Is that correct? Justin _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
