Analysis of SDWDM Ring Network and Enhancement Using Different Hybrid Optical Amplifiers and Modulation Formats

Vineet Anand; Anurag Sharma

doi:10.1515/joc-2015-0085

Article

Analysis of SDWDM Ring Network and Enhancement Using Different Hybrid Optical Amplifiers and Modulation Formats

Vineet Anand and Anurag Sharma

Published/Copyright: February 4, 2016

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From the journal Journal of Optical Communications Volume 37 Issue 3

Abstract

In this paper, performance enhancement of super-dense wavelength division multiplexing (SDWDM) optical add–drop multiplexer optical ring network for six nodes, 50 wavelengths having channel spacing of 0.2 nm for 300 km unidirectional nonlinear fiber is successfully demonstrated. The performance of the designed system is enhanced by comparing different modulation formats (non-return to zero (NRZ), return to zero (RZ), soliton, chirped return to zero (CRZ), carrier-suppressed RZ (CSRZ)) and hybrid amplifiers (Erbium-doped fiber amplifier (EDFA)–EDFA, semiconductor optical amplifier (SOA)–SOA, SOA, EDFA, EDFA–SOA) on the basis of eye diagram and bit error rate (BER). It has been observed that CRZ modulation format and EDFA-SOA shows the best results. It has been reported that EDFA-SOA/CRZ modulation format can achieve BER as better as e-13, which gives best performance. The effect of channel spacing on SDWDM system and performance degradation due to crosstalk is also evaluated.

Keywords: bit error rate (BER); chirped return to zero (CRZ); return to zero (RZ); carrier-suppressed RZ (CSRZ); dense wavelength division multiplexing (DWDM); non-return to zero (NRZ); Erbium-doped fiber amplifier (EDFA); SOA; LEAF; OADM; crosstalk

PACS: 50.1.Sz; 50.6.Uv; 50.1Fm

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Received: 2015-10-10

Accepted: 2015-12-29

Published Online: 2016-2-4

Published in Print: 2016-9-1

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https://doi.org/10.1515/joc-2015-0085

Keywords for this article

bit error rate (BER); chirped return to zero (CRZ); return to zero (RZ); carrier-suppressed RZ (CSRZ); dense wavelength division multiplexing (DWDM); non-return to zero (NRZ); Erbium-doped fiber amplifier (EDFA); SOA; LEAF; OADM; crosstalk