| 摘要 |
<p>A method for transmitting modulated optical signals between a central optical node and a first and a second optical client terminals, the method comprising at an optical interconnection device (10):
receiving the upstream optical signals carried by an upstream black-and-white wavelength channel (»1) through client optical links (9) and converting the upstream optical signals to wavelength channels (»2, »3) of a frequency grid for WDM transmission to the central optical node through a central optical link (3),
converting the downstream optical signals from wavelength channels (»6, »7) of the frequency grid to a downstream black-and-white wavelength channel (»10) and transmitting the downstream optical signals carried by the downstream black-and-white wavelength channel to the optical client terminals through the client optical links (9).</p> |
