| 摘要 |
<p>The invention relates to a high density wavelength division multiplexing passive optical network (HDWDM-PON) comprising optically connected: at least one optical line terminal (OLT), at least one optical distribution network (ODN) and at least one optical network unit (ONU), wherein OLT comprises two arrayed waveguide gratings (AWG) with Gaussian amplitude square transfer function and equal bandwidths; at least one transmitter optically connected to the AWG, wherein the channel interval ”» between adjacent channels central wavelengths of the transmitter's light source is 0.3 nm or lower; at least one receiver optically connected to the AWG with Gaussian amplitude square transfer function and equal bandwidths; a superluminescent light emitting diode (SLED), being optically connected to a splitter, which is optically connected to the AWG being connected to at least transmitter; the splitter is being optically connected to an optical circulator; the circulator also is being optically connected with the AWG being connected to at least one receiver. The circulator is being optically connected with the ODN by means of standard single mode fibre (SSMF); the SSMF being connected with another arrayed waveguide grating (AWG) with Gaussian amplitude square transfer function and equal bandwidths, which is being connected with at least one ONU, comprising C band and L band splitting filter (BS) optically connected to a reflective semiconductor amplifier (RSOA) and receiver.</p> |
