Comparative Performance of Modulation Formats using RAMAN-EDFA Hybrid Optical Amplifier in Fiber Optic Communication System

Garima Arora; Sanjeev Dewra

doi:10.1515/joc-2016-0081

Article

Comparative Performance of Modulation Formats using RAMAN-EDFA Hybrid Optical Amplifier in Fiber Optic Communication System

Garima Arora and Sanjeev Dewra

Published/Copyright: August 4, 2016

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From the journal Journal of Optical Communications Volume 38 Issue 2

Abstract

This paper presents the comparison of various modulation formats for 64×10 Gbps dense wavelength division multiplexing system using Raman–erbium-doped fiber amplifier optical amplifier with 100 GHz interval. We evaluate the suitability of various data formats like return-to-zero (RZ) raised cosine (RC), RZ rectangular (Rect), non-return-to-zero (NRZ) RC and NRZ-Rect for an optical transmission link. The results have been carried out by evaluating the value of quality factor, bit error rate (BER) and average opening of an eye. It is found that using NRZ-Rect data format, the signal can travel up to transmission length of 234 km with acceptable BER (1.10e⁻⁰⁹) and Q-factor (15.57 dB), respectively. In addition, the effect of dispersion on various data formats has also been discussed. Further, we investigate the optical RZ pulse with variable duty cycle indicating the highest quality factor and optical output power for duty cycle 0.6 observed for the case of back-to-back system.

Keywords: bit error rate; dense wavelength division multiplexing (DWDM); non-return to zero (NRZ); return to zero (RZ)

References

1. Prat J, Polo V, Bock C, Arellano C, Vegas-Olmos JJ. Full-duplex single fiber transmission using FSK downstream and IM remote upstream modulations for fiber to the home. IEEE Photon Technol Lett 2005;17:702–4.10.1109/LPT.2004.840930Search in Google Scholar

2. Jordan A, Masetti F, Garnot M, Soulage G, Sontom M. Design and implementation of a fully reconfigurable all-optical cross connect for high capacity multi wavelength transport networks. J Lightwave Tech 1996;14:1198–206.10.1109/50.511621Search in Google Scholar

3. Dewra S, Kaler RS. Performance evaluation of optical add drop multiplexers with Mach–Zehnder interferometer techniques for dense wavelength division multiplexed system. J Opt Technol 201380:526–31.10.1364/JOT.80.000526Search in Google Scholar

4. Ahmad A, Mahdi MA, Md Ali MI, Zamzuri AK. Investigation of hybrid gain-clamped Raman fiber amplifier/EDFA utilizing pump reuse technique. Laser Phys Lett 2008;5:202–5.10.1002/lapl.200710098Search in Google Scholar

5. Sun Hyok Chang, Jin Soo Han, Hee Sang Chung, Kwangjoon Kim and Je Soo Ko. Characteristics of low noise hybrid fiber amplifier. Opt Commun 2006;261:269–75.10.1016/j.optcom.2005.12.026Search in Google Scholar

6. Bobrovs V, Ivanovs G. Comparison of different modulation formats and their compatibility with WDM transmission system. Latvian J Phys Tech Sci 2008;5:3–16.10.2478/v10047-008-0005-7Search in Google Scholar

7. Wei X, Liu X, Simon SH, McIntyre CJ. Intra channel four-wave mixing in highly dispersed return to zero differential phase shift keyed transmission with non-symmetric dispersion map. Opt Lett 2006;31:29–31.10.1364/OL.31.000029Search in Google Scholar

8. Singh S, Kaler RS. Performance evaluation of 64×10 Gbps and 96×10 Gbps DWDM system with hybrid optical amplifier for different modulation formats. Optik 2012;123:2199–203.10.1016/j.ijleo.2011.11.015Search in Google Scholar

9. Singh S, Saini S, Kaur G, Kaler RS. On the optimization of Raman fiber amplifier using genetic algorithm in the scenario of a 64 nm 320 channels dense wavelength division multiplexed system. J Opt Soc Korea 2014;18:118–23.10.3807/JOSK.2014.18.2.118Search in Google Scholar

10. Tripathi DKr, Singh P, Shukla NK, Dixit HK. Design and performance study of MMDWDM systems. Electr Electron Eng Int J 2014;3:11–24.Search in Google Scholar

11. Singh S, Kaler RS. Hybrid optical amplifiers for 64×10 Gbps dense wavelength division multiplexed system. Optik 2013;124:1311–13.10.1016/j.ijleo.2012.03.073Search in Google Scholar

12. Singh M, Sharma AK, Kaler RS. Optimizing 10 Gbps optical communication system with duty cycle’ selection of return to zero pulse. Optik 2008;119:359–64.10.1016/j.ijleo.2006.12.020Search in Google Scholar

13. Malhotra Y, Kaler RS. Compensating spectral loss variations in EDFA amplifiers for different modulation formats. Optik 2011;122:435–9.10.1016/j.ijleo.2010.02.027Search in Google Scholar

14. Matsuda T, Naka A, Saito S. Comparison between NRZ and RZ signal formats for in-line amplifier transmission in the zero-dispersion regime. IEEE J Lightwave Technol 1998;16:40–8.10.1109/50.661359Search in Google Scholar

15. Singh S, Kaler RS. Power transient and its control in Raman-erbium doped fiber amplifier hybrid optical amplifier subject to multi-channel bursty traffic. J Opt Tech 2014;81:590–3.10.1364/JOT.81.000590Search in Google Scholar

16. Singh S, Kaler RS. Multistage gain-flattened hybrid optical amplifier at reduced wavelength spacing. Optik 2014;125:5357–9.10.1016/j.ijleo.2014.06.038Search in Google Scholar

Received: 2016-6-8

Accepted: 2016-7-18

Published Online: 2016-8-4

Published in Print: 2017-5-24

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Articles in the same Issue

https://doi.org/10.1515/joc-2016-0081

Keywords for this article

bit error rate; dense wavelength division multiplexing (DWDM); non-return to zero (NRZ); return to zero (RZ)