Abstract
To avoid significant stimulated Brillouin scattering (SBS) generation in a bidirectional Raman-pumped long single-span transmission system, the SBS threshold is studied in both return-to-zero ON-OFF-keying (RZ-OOK) and RZ differential phase-shift keying (DPSK) systems. It shows that SBS threshold in an RZ-DPSK system is more than 10 dB higher than that in an RZ-OOK system, and SBS reflection is dominated by copumping, while counterpumping has minor effect. Error-free eight-channel single-span transmission is demonstrated over 310-km standard single-mode fiber using RZ-DPSK format and bidirectional Raman pumping, without applying forward-error correction and remote-pumping techniques.
| Original language | English |
|---|---|
| Pages (from-to) | 2209-2211 |
| Number of pages | 3 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 17 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 1 Oct 2005 |
| Externally published | Yes |
Keywords
- Differential phase-shift-keying (DPSK)
- Raman amplification
- Stimulated brillouin scattering (SBS)
- Wavelength-division multiplexing (WDM)
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering
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