Gain flatness level with gain profile ripple and fiber system bandwidth performance optimization with multi pump all optical fiber distributed Raman amplifiers
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Ramachandran Thandaiah Prabu
, Govindanaidu Damodaran Vignesh
Abstract
This paper has clarified the gain flatness level with gain profile ripple and bandwidth performance optimization for multi pump all optical fiber distributed Raman amplifiers. Raman gain and gain ripple variations are demonstrated against various pumping Raman amplifiers level number. Output power variations are measured against various pumping Raman amplifiers level number and ambient temperature variations. Effective Raman gain, average signal per noise ratio, average repeater spacing is estimated against various number of Raman pumps and number of links per fiber core based on various values of relative refractive index difference percentage with number various number of links per fiber core. Effective Raman gain is measured at effective length versus number of Raman pumps and relative refractive index fiber core difference with various number of links per fiber core. Effective Raman gain, average repeater spacing, average bit rate per channel are demonstrated at effective length versus various pumping Raman amplifiers level number and ambient temperature variations.
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Research ethics: Not applicable.
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Informed consent: Not applicable.
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Author contributions: The authors have accepted responsibility for the entire content of this manuscript and approved its submission.
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Use of Large Language Models, AI and Machine Learning Tools: None declared.
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Conflict of interest: The authors state no conflict of interest.
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Research funding: None declared.
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Data availability: Not applicable.
References
1. Katebi Jahromi, M, Mojtaba Saif, S, Jabbari, M. Performance optimization of the multi-pumped Raman optical amplifier using MOICA. Int J Adv Comput Sci Appl 2016;7:170–80. https://doi.org/10.14569/ijacsa.2016.070824.Suche in Google Scholar
2. Singh, K, Singh Patterh, M, Singh Bhamrah, M. Investigations on multi pumped fiber Raman amplifiers over WDM in optical communication system. Int J Comput Appl 2012;39:8–12. https://doi.org/10.5120/4806-6984.Suche in Google Scholar
3. Hu, J, Marks, BS, Menyuk, CR. Flat gain fiber Raman amplifiers using equally spaced pumps. J Lightwave Technol 2004;22:1519–22. https://doi.org/10.1109/jlt.2004.829187.Suche in Google Scholar
4. Perlin, V, Winful, H. Optimal design of flat-gain wide-band fiber Raman amplifiers. J Lightwave Technol 2002;20:250–4. https://doi.org/10.1109/50.983239.Suche in Google Scholar
5. Islam, MN. Raman amplifiers for telecommunications. IEEE J Sel Top Quant Electron 2002;8:548–59. https://doi.org/10.1109/jstqe.2002.1016358.Suche in Google Scholar
6. Ramkumar, G, Rajasekaran, V, Sivaraman, D, Arumugam, S, Dwaraka Praveena, H, Prathima, S, et al.. Comparative analysis of high index core micro structured optical fibers (HIMSOF) and hollow core band gap fibers (HCBGF) performance efficiency in fiber communication system. J Opt Commun 2024;45:102–15. https://doi.org/10.1515/joc-2024-0085.Suche in Google Scholar
7. Namiki, S, Emorg, Y. Ultrabroad-band Raman amplifiers pumped and gain-equalized by wavelength-division-multiplexed high-power laser diodes. IEEE J Sel Top Quant Electron 2001;7:3–16.10.1109/2944.924003Suche in Google Scholar
8. Perlin, VE, Winful, HG. On distributed Raman amplification for ultrabroad-band long-haul WDM systems. J Lightwave Technol 2002;20:409–16. https://doi.org/10.1109/50.988989.Suche in Google Scholar
9. Islam, MN. Raman amplifiers for telecommunications. IEEE J Sel Top Quant Electron 2002;8:548–59. https://doi.org/10.1109/jstqe.2002.1016358.Suche in Google Scholar
10. Govindaraj, R, Ferlin Deva, S, Vanitha, L, Prabhu, C, Vivek, C, Parimala, A, et al.. Total losses and dispersion effects management and upgrading fiber reach in ultra-high optical transmission system based on hybrid amplification system. J Opt Commun 2024;45:133–46.Suche in Google Scholar
11. Lin, X, Zhang, H, Guo, Y. A novel method for Raman amplifier propagation equations. IEEE Photonics Lett 2003;15:392–4. https://doi.org/10.1109/lpt.2002.807929.Suche in Google Scholar
12. Grosz, DF, Agarwal, A, Banerjee, S, Maywar, DN, Kung, AP. All-Raman ultra-long-haul single-wideband DWDM transmission systems with OADM capability. J Lightwave Technol 2004;22:423–32. https://doi.org/10.1109/jlt.2004.824461.Suche in Google Scholar
13. Xu, Z, Roltwitt, K, Peucheret, C, Jeppesen, D. Optimization of pumping schemes for 160 Gb/s single-channel Raman amplified systems. IEEE Photonics Technol Lett 2004;16:329–31.10.1109/LPT.2003.820477Suche in Google Scholar
14. Cuenot, B. Comparison of engineering scenarios for N × 160 Gb/s WDM transmission systems. IEEE Photon Technol Lett 2002;15:864–6. https://doi.org/10.1109/lpt.2003.811335.Suche in Google Scholar
15. Han, Q, Ning, J, Zhang, H, Chen, Z. Novel shooting algorithm for highly efficient analysis of fiber Raman amplifiers. J Lightwave Technol 2006;24:4946.10.1109/JLT.2006.871008Suche in Google Scholar
16. Kao, MS, Wu, J. Signal light amplification by stimulated Raman scattering in an N-channel WDM optical communication systems. J Lightwave Technol 1989;7:1290–9. https://doi.org/10.1109/50.50707.Suche in Google Scholar
17. Kobtsev, SM, Pustovskikh, AA. Improvement of Raman gain flatness by broadband pumping sources. Laser Phys 2004;14:1488–91.Suche in Google Scholar
18. Ming, LX, He, LY. Optimal bandwidth for distributed multi-pumping Raman amplifier based on hybrid genetic algorithm. Chin Phys Lett 2004;21:84–6.10.1088/0256-307X/21/1/026Suche in Google Scholar
19. Chen, J, Liu, X, Lu, C, Wang, Y, Li, Z. Design of multi-stage gain-flattened fiber Raman amplifiers. J Lightwave Technol 2006;24:935–44. https://doi.org/10.1109/jlt.2005.861937.Suche in Google Scholar
20. Kikuchi, N, Wong, KY, Uesaka, K, Shimizu, K, Yam, S, Hu, ET, et al.. Novel in-service wavelength-based upgrade scheme for fiber Raman amplifier. IEEE Photonics Technol Lett 2003;15:27–9. https://doi.org/10.1109/lpt.2002.805800.Suche in Google Scholar
21. Liu, X, Lee, B. A fast and stable method for Raman amplifier propagation equations. Opt Express 2003;11:2163–76. https://doi.org/10.1364/oe.11.002163.Suche in Google Scholar PubMed
22. Nakashima, T, Seikai, S, Nakazawa, M, Negishi, Y. Theoretical limit of repeater spacing in an optical transmission line utilizing Raman amplification. J Lightwave Technol 1986;LT-4:1267–72. https://doi.org/10.1109/jlt.1986.1074868.Suche in Google Scholar
23. Gopalan, A, Thillaigovindan, A, Mohan Patnala, P, Mary Lesley, H, Sundaram, M, Srinivasan, V, et al.. High speed operation efficiency of doped light sources with the silica-doped fiber channel for extended optical fiber system reach. J Opt Commun 2024;45:1–14. https://doi.org/10.1515/joc-2024-0130.Suche in Google Scholar
24. Wake, D, Dupont, S, Vilcot, J-P, Seeds, AJ. 32-QAM radio transmission over multimode fibre beyond the fibre bandwidth. Int Microw Photon Top Meeting 2002;37:1087–9.Suche in Google Scholar
25. Tyler, EJ, Webster, M, Penty, RV, White, IH. Penalty free subcarrier modulated multimode fiber links for datacomm applications beyond the bandwidth limit. IEEE Photon Technol Lett 2002;14:110–2. https://doi.org/10.1109/68.974178.Suche in Google Scholar
26. Wake, D, Dupont, S, Lethien, C, Vilcot, J-P, Decoster, D. Radio frequency transmission of 32-QAM signals over multimode fibre for distributed antenna system applications. Electron Lett 2001;37:1087–8. https://doi.org/10.1049/el:20010748.10.1049/el:20010748Suche in Google Scholar
27. Petar, P, Steven, GE, John, R, Paul, K, Aleksander, R. Modeling and simulation of next-generation multimode fiber links. J Lightwave Technol 2003;21:1242–55. https://doi.org/10.1109/jlt.2003.811320.Suche in Google Scholar
28. Mena, PV, Morikuni, JJ, Kang, S-M, Harton, AV, Wyatt, KW. A simple rate-equation-based thermal VCSEL model. J Lightwave Technol 1999;17:865–72. https://doi.org/10.1109/50.762905.Suche in Google Scholar
29. Carlsson, C, Martinsson, H, Schatz, R, Halonen, J, Anders, L. Analog modulation properties of oxide confined VCSELs at microwave frequencies. IEEE J Lightwave Technol 2002;20:1740–9. https://doi.org/10.1109/jlt.2002.802223.Suche in Google Scholar
30. Gholami, A, Toffano, Z, Destrez, A, Pez, M, Quentel, F. Spatiotemporal and thermal analysis of VCSEL for short-range gigabit optical links. Opt Quant Electron 2006;38:479–93. https://doi.org/10.1007/s11082-006-0044-3.Suche in Google Scholar
31. Persson, K-A, Carlsson, C, Alping, A, Haglund, A, Gustavsson, JS, Modh, P, et al.. WCDMA radio-over-fiber transmission experiment using singlemode VCSEL and multimode fibre. Electron Lett 2006;42:372–4. https://doi.org/10.1049/el:20064130.10.1049/el:20064130Suche in Google Scholar
32. Murali Krishna, K, Ganesh, M. Vertical cavity surface emitting laser hybrid fiber-free space optic link for passive optical network applications. Optik 2018;171:253–65.10.1016/j.ijleo.2018.06.079Suche in Google Scholar
33. Murali Krishna, K, Madhan, MG. Performance evaluation of remote millimeter wave generation in a digital optical link incorporating a gain switched vertical cavity surface emitting laser. J Optoelectron Adv Mater 2019;21:54–63.Suche in Google Scholar
34. Murali Krishna, K, Ganesh Madhan, M, Ashok, P. Study of gain switching in vertical cavity surface emitting laser under different electrical pulse inputs. Def Sci J 2020;70:538–41. https://doi.org/10.14429/dsj.70.16340.Suche in Google Scholar
35. Murali Krishna, K, Ganesh Madhan, M, Ashok, P. Performance predictions of VCSEL based cascaded fiber-FSO RoF system for 5G applications. Optik 2022;257:1–11. https://doi.org/10.1016/j.ijleo.2022.168740.Suche in Google Scholar
36. Ashok, P, Madhan, MG. Numerical analysis on capacity improvement in free space optical link employing two-segment quantum cascade laser-based repeater. Optik 2020;204:1–7.10.1016/j.ijleo.2020.164216Suche in Google Scholar
37. Prabu, RT, Arulmozhi, AK, Vijay, S, Bai Vijayan, T, Sivaraman, D, Arulraj, M, et al.. High thermal stability and high-performance efficiency capability of light sources–based rate equation models in optical fiber transmission systems. J Opt Commun 2024;45:1–18. https://doi.org/10.1515/joc-2024-0090.Suche in Google Scholar
38. Rottwitt, K, Bromage, J, Stentz, AJ, Leng, L, Lines, ME, Smith, H. Scaling of the Raman gain coefficient: applications to germanosilicate fibers. J Lightwave Technol 2003;21:1652–62. https://doi.org/10.1109/jlt.2003.814386.Suche in Google Scholar
39. Rahman, MS, Lee, JH, Park, Y, Kim, K-D. Radio over fiber as a cost effective technology for transmission of WiMAX signals. World Acad Sci Eng Technol 2009;56:1645–9.Suche in Google Scholar
40. Prabu, RT, Balakrishnan, B, Dwaraka Praveena, H, Bai Vijayan, T, Xavier, BM, Perumal, E, et al.. High modulation effects on hybrid optical fiber links and OWC Channel based on optical DP-QSK transceiver systems. J Opt Commun 2024;45:1–15. https://doi.org/10.1515/joc-2024-0015.Suche in Google Scholar
41. Bromage, J. Raman amplification for fiber communications systems. IEEE J Lightwave Technol 2004;22:79–93. https://doi.org/10.1109/jlt.2003.822828.Suche in Google Scholar
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