Device and method for transmitting and receiving business data in wavelength division multiplexing PON (passive optical network)

摘要: The invention discloses a device and method for transmitting receiving business data in wavelength division multiplexing PON, which comprises broad band optical source, first modulator, array waveguide grating, plurality of second modulators grating are connected sequence, wherein the output ends, each end is with input one modulator. In invention, broadcast signals unicast can be transmitted at same wavelength, use rate high, bit guaranteed to have energy all times, so that free limitation ascending transmission rate; efficiency spectrum doubled by means number simple demodulating devices; network unit saves transmitter, conduct remodulation on descending taken as signal sources.