Abstract
We propose a novel wavelength-division multiplexed passive optical network (WDM-PON) to simultane- ously transmit unicast data and multicast services with upstream data re-modulation in optical network units (ONUs). For each wavelength channel in the optical line terminal (OLT), the downstream unicast data are applied to one arm of a dual-parallel Mach-Zehnder modulator (DPMZM) to generate baseband unicast non-return-to-zero (NRZ) signal. A radio frequency (RF) control signal is applied to the other arm to present two un-modulated sidebands for multicast data modulation in a differential phase-shift keying (DPSK) format. The flexible and dynamic multicast services are realized by simply switching the RF control signal on or off. The proposed scheme is experimentally demonstrated with 1.25-Gb/s downstream unicast, multicast, and upstream data.
| Original language | English |
|---|---|
| Pages (from-to) | 972-975 |
| Number of pages | 4 |
| Journal | Chinese Optics Letters |
| Volume | 8 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 1 Oct 2010 |
| Externally published | Yes |