| 摘要 |
A method includes: receiving a downstream optical signal propagating away from a head end; dividing the downstream optical signal into a downstream high portion and a downstream low portion; diplexing the downstream low portion with an upstream low portion; combining the upstream low portion and an upstream high portion; and transmitting the combined upstream portions as an upstream optical signal propagating toward a head end. An apparatus includes: an optical receiver; an optical divider coupled to the optical receiver; an optical diplexer coupled to the optical divider; an optical combiner coupled to the optical diplexer; and an optical transmitter coupled to the optical combiner.
|
