Abstract
Phase-modulated (PM) signals have recently been used in long-haul lightwave communication systems to reach record distances. Added directly to the signal phase, linear and nonlinear phase noise cause performance degradation in PM systems. Minimum-shift keying (MSK), as a special format of PM signals, presents some different features of phase noise tolerance. This paper investigates the effect of phase noise on the performance degradation in the 10 Gb/s optical MSK systems and analyzes the contribution of phase noise to the bit error rate (BER), compared with the conventional PM format, 50% duty cycle optical return-to-zero differential phase-shift keying (RZ-DPSK) signals, in several typical local fiber dispersion transmission systems. The effect of intensity noise on the performance degradation in the corresponding transmission systems is also investigated.
| Original language | English |
|---|---|
| Pages (from-to) | 4045-4051 |
| Number of pages | 7 |
| Journal | Optics Communications |
| Volume | 282 |
| Issue number | 20 |
| DOIs | |
| Publication status | Published - 15 Oct 2009 |
| Externally published | Yes |
Keywords
- Differential phase Q-factor
- Minimum-shift keying
- Phase-modulated
- Return-to-zero differential phase-shift keying
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