Abstract
We demonstrate an optical transmission system based on a 53.5-Gb/s differential 6-ary phase-shift-keying (D6PSK) signal with copropagating 10.7-Gb/s nonreturn-to-zero (NRZ) on-off keying (OOK) channels over either 320-km-long single-mode fiber link with in-line dispersion compensation or 320-km-long dispersion-shifted fiber link, and compare its performances with that of a classical polarization-division-multiplexing differential quadrature phase-shift-keying (DQPSK)-based system. The results show that the nonlinear tolerance of the D6PSK signal outperforms that of the PDM-DQPSK signal in terms of the cross-phase modulation effect induced by the 10.7-Gb/s NRZ-OOK neighboring channels.
| Original language | English |
|---|---|
| Article number | 6163351 |
| Pages (from-to) | 806-808 |
| Number of pages | 3 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 24 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2012 |
| Externally published | Yes |
Keywords
- Cross-phase modulation
- differential phase-shift-keying
- fiber nonlinearity
- multilevel modulation format
- wavelength-division-multiplexing
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering