Performance evaluation of 64×10Gbps and 96×10Gbps DWDM system with hybrid optical amplifier for different modulation formats
Abstract
In this paper, we investigated the performance of multi terabits DWDM system consisting of hybrid optical amplifier RAMAN-EDFA for different data format such as non-return to zero (NRZ), return to zero (RZ) and differential phase shift keying (DPSK). We find that in 64×10 and 96×10Gbps, RZ is more adversely affected by nonlinearities, where as NRZ and DPSK is more affected by dispersion. We further show that RZ provide good quality factor (13.88dB and 15.93dB for 64 and 96 channels), less eye closure (2.609dB and 3.191dB for 64 and 96 channels) and acceptable bit error rate (3.89×108 and 1.24×109 for 64 and 96 channels) at the respective distance as compare to other existing modulation format. We further investigated the maximum single span distance covered by using existing data formats.
- Publication:
-
Optik
- Pub Date:
- December 2012
- DOI:
- 10.1016/j.ijleo.2011.11.015
- Bibcode:
- 2012Optik.123.2199S
- Keywords:
-
- DWDM;
- RAMAN-EDFA;
- Modulation formats;
- RZ;
- NRZ and DPSK