The Examination of the Performance Factors on NGDWDM Systems with Roadm Structure

Abstract

Nowadays, the new technologies provide high capacity by using 100 Gb/s channels. These systems are useful, practical, and flexible by using Optical Transport Networks (OTN) and Reconfigurable Optical Add Drop Multiplexers (ROADMs) structures. These new features supply new protection mechanisms over switching on Wavelength Selective Switching (WSS) layer, and Automatically Switching Optical Network (ASON) that is the Generalized Multiprotocol Label Switching (GMPLS) based software runs on the Dense Wavelength Division Multiplexing (DWDM) network elements. In this paper, effects of the optical signal-to-noise ratio (OSNR) are analyzed by increasing the channel lengths on a real long-haul ROADM DWDM network. Then, new cases on channel balancing comes with ROADMs are discoursed. In addition, protection mechanisms are represented and compared by the test results. 

Keywords

• ROADMs
• DWDM
• OTN
• WSS
• OSNR
• ASON
• protection
• performance.

References

1. Huang, Y., Ip, E., Huang, M.F., “10×456 Gb/s DP-16QAM transmission over 8×100 km of ULAF using coherent detection with a 30 GHz analog-to-digital converter”, OECC (2010), Sapporo, July 5-9 2010
2. Zhou, X., Yu, J., Huang, M.F., “64 Tb/s (640×107 Gb/s) PDM-36QAM transmission over 320 km using both pre- and post-transmission digital equalization”, J Lightwave Technol., 29(4):571-577, (2011).
3. Patel, A. N., Ji, P. N., Jue, J. P., T., “Routing, wavelength assignment and spectrum allocation algorithms in transparent flexible optical WDM networks”, Opt Switch Netw., , 9(3):191-204, (2012).
4. Talebi, S., Alam, F., Katib, I., et al.: “Spectrum management techniques for elastic optical networks: A survey”, Opt Switch Netw., 13(4):34-48, (2014).
5. Singh, S., “Performance investigation on DWDM optical ring network to increase the capacity with acceptable performance”, Optik, 125(19): 5750–5752, 2014.
6. Tiwari, V., Sikdar, D., Navya, M., Jyothi, “Investigation of optimum pulse shape for 112 Gbps DP-DQPSK in DWDM transmission”, Optik, , 124(22): 5567–5572, (2013)
7. Zhou, Z., Xiao, S., Qi, T., “25-GHz-Spaced DWDM-PON With Mitigated Rayleigh Backscattering and Back-Reflection Effects”, IEEE Photonics Journal, 5(4):7901407-7901407, (2013).
8. Schuh, K., Lach, E., Junginger, B., “8 Tb/s (80 107 Gb/s) DWDM NRZ-VSB Transmission Over 510 km NZDSF with 1 bit/s/Hz Spectral Efficiency”, Bell Labs Technical Journal, , 14(1):89–104, (2009).

9. ITU-T Recommendation G.709/Y.1331: “Interfaces for the optical transport network”, (2012).
10. Hsueh, Y.T., Stark, A., Liu, C., “Passband Narrowing and Crosstalk Impairments in ROADM-Enabled 100G DWDM Networks”, J Lightwave Technol., 30(24):3980–3986, (2012).
11. Miller, D.A.B., “Reconfigurable add-drop multiplexer for spatial modes”, Opt Express, 21(17):20220-20229, (2013).
12. Hong, W., Bai, N., Sun, X., “Design of flexible and reconfigurable optical add/drop multiplexer”, Opt Fiber Technol., 17(3):247-251, (2011).
13. Goodchild, T., “High Speed Transport Presentation Applications”, Exfo Application Notes, (2014)
14. Alcatel-Lucent Technology White Paper, “Next-generation Electro-Optics Technology with Coherent Detection”, (2010).
15. Sabapathi, T., Manohari, R. G.,, “Analysis and Compensation of Polarization Mode Dispersion in Single Channel WDM and 32-channel DWDM”, Optik, 125(1):18–24, (2014).
16. Perlicki, K., Okrasa, W., “Analysis of crosstalk in mixed 40 Gb/s and 100 Gb/s DWDM system with alien wavelength”, Optica Applicata, , 42(4):829-834, (2012).
17. Tibuleac, S., Filer, M., “Transmission Impairments in DWDM Networks With Reconfigurable Optical Add-Drop Multiplexers”, J Lightwave Technol., , 28(4),:557-568, (2010).
18. Singh, S., Kaler, R.S., “Investigation of hybrid optical amplifiers with different modulation formats for DWDM optical communication system”, Optik, 124(15):2131–2134, (2013).
19. Singh, S., Kaler, R.S., “Performance evaluation of 64 × 10 Gbps and 96 × 10 Gbps DWDM system with hybrid optical amplifier for different modulation formats”, Optik, 123(24):2199–2203, (2012).
20. Li, Y., Dai, H., Shen, G., “Adaptive FEC-based lightpath routing and wavelength assignment in WDM optical networks”, Opt Switch Netw., 14(7):241– 249, (2014).
21. Patnaik, B., Sahu, P. K., “Ultra high capacity 1.28 Tbps DWDM system design and simulation using optimized modulation format”, Optik, 124(13): 1567–1573, (2013)
22. Aloisio, A., Ameli, F., D’Amico, A., “Performance Analysis of a DWDM Optical Transmission System”, IEEE T Nucl Sci., , 59(2):2, (2012).
23. Klabjan D., Borraz, C., “Optimal Placement of Reconfigurable Optical Add/Drop Multiplexers with Packing, Blocking, and Signal Loss”, Computer Netw., , 57(6):1443-1458, (2013)