Abstract
In this paper, we report the modeling and simulative investigation of a mode division multiplexing (MDM)-based Radio over Free space optics (RoFSO) transmission system. Two separate 10 Gbit/s–10 GHz information signals are transported successfully over 30 km link range using distinct Hermite Gaussian (HG) modes. Also, the decomposition of distinct modes at the receiver terminal has been reported in this work. Furthermore, the impact of different fog conditions and scintillation effect on the performance of the proposed link has also been discussed in this paper.
References
1. Singh J, Kumar N. Performance analysis of different modulation format on free space optical communication system. Opt-Int J Light Electron Opt. 2013;124:4651–4.10.1016/j.ijleo.2013.02.014Search in Google Scholar
2. Ramezani A, Noroozi MR, Aghababaee M. Analyzing free space optical communication performance. Int J Eng Adv Technol. 2014;4:46–51.Search in Google Scholar
3. Al-Gailani SA, Mohammad AB, Shaddad RQ. Evaluation of a 1 Gb/s free space optic system in typical Malaysian weather. In: Proceedings of IEEE 3rd International Conference on Photonics, 2012:121–4.10.1109/ICP.2012.6379839Search in Google Scholar
4. Nykolak G, Szajowski PF, Tourgee G, Presby H. 2.5 Gbit/s free space optical link over 4.4 km. Electron Lett. 1999;35:578–9.10.1049/el:19990377Search in Google Scholar
5. Khalighi MA, Uysal M. Survey on free space optical communication: a communication theory perspective. IEEE Commun Surv Tutorials. 2014;16:2231–58.10.1109/COMST.2014.2329501Search in Google Scholar
6. Mahdy A, Deogun JS. Wireless optical communications: a survey. In: Proceedings of IEEE Wireless Communications and Networking Conference, vol. 4, 2004:2399–404.Search in Google Scholar
7. Shah D, Kothari D. Optimization of 2.5 Gbps WDM-FSO link range under different rain conditions in Ahmedabad. In: 2014 Annual IEEE India Conference (INDICON), Pune, 2014:1–4.10.1109/INDICON.2014.7030643Search in Google Scholar
8. Jee R, Chandra S. Performance analysis of WDM-free-space optical transmission system with M-QAM modulation under atmospheric and optical nonlinearities. In: 2015 International Conference on Microwave, Optical and Communication Engineering (ICMOCE), Bhubaneswar, 2015:41–4.10.1109/ICMOCE.2015.7489686Search in Google Scholar
9. Tsai W, Lu H, Li C, Lu T, Lin H, Chen B, et al. A 50-m/320-Gb/s DWDM FSO communication with afocal scheme. IEEE Photon J. 2016;8:1–7.10.1109/JPHOT.2016.2555618Search in Google Scholar
10. Huang X, Li C, Lu H, Su C, Wu Y, Wang Z, et al. WDM free-space optical communication system of high-speed hybrid signals. IEEE Photon J. 2018;10:1–7.10.1109/JPHOT.2018.2881701Search in Google Scholar
11. Chandra S, Jee R, Singh M. Transmission performance of hybrid WDM-FSO system for using diversity multiplexing in the presence of optical nonlinearities and fading. In: TENCON 2017-2017 IEEE Region 10 Conference, Penang, 2017:2733–8.10.1109/TENCON.2017.8228326Search in Google Scholar
12. Amphawan A, Mishrab V, Nisaran K, Nedniyomc B. Realtime holographic backlighting positioning sensor for enhanced power coupling efficiency into selective launches in multimode fiber. J Mod Optic. 2012;59:1745–52.10.1080/09500340.2012.739713Search in Google Scholar
13. Jung Y, Chen R, Ismaeel R, Brambilla G, Alam SU, Giles IP, et al. Dual mode fused optical fiber couplers suitable for mode division multiplexed transmission. Opt Express. 2013;21:24326–31.10.1364/OE.21.024326Search in Google Scholar PubMed
14. Amphawan A, Benjaporn N, Nashwan MA. Selective excitation of LP01 mode in multimode fiber using solid-core photonic crystal fiber. J Mod Opt. 2013;60:1675–83.10.1080/09500340.2013.827249Search in Google Scholar
15. Amphawan A. Binary encoded computer generated holograms for temporal phase shifting. Opt Express. 2011;19:23085–96.10.1364/OE.19.023085Search in Google Scholar PubMed
16. Amphawan A, Dominic O. Modal decomposition of output field for holographic mode field generation in a multimode fiber channel. In: Proceedings to Photonics (ICP), 2010 International Conference, Langkawi: IEEE, 2010.10.1109/ICP.2010.5604377Search in Google Scholar
17. Carpenter J, Eggleton BJ, Schroder J. Applications of spatial light modulators for mode-division multiplexing. In: Optical Communication (ECOC), 2014 European Conference on, IEEE, 2014:1–3.10.1109/ECOC.2014.6964216Search in Google Scholar
18. Lyubopytov VS, Bagmanov VK, Sultanov AK. Adaptive SLM-based compensation of intermodal interference in few-mode optical fibers. In: SPIE Optical Engineering+ Applications, International Society for Optics and Photonics, 2014:92160I–92160I-14.10.1117/12.2061427Search in Google Scholar
19. Jiangli D, Kin Seng C. Mode-locked fiber laser with transverse-mode selection based on a two-mode FBG. Photon Technol Lett IEEE. 2014;26:1766–9.10.1109/LPT.2014.2335892Search in Google Scholar
20. Yam SS, Gu X, Mohammed W, Smith PW. Multimode fiber Bragg grating wavelength filter in a 10-Gb/s system. IEEE Photon J. 2008;20:584–6.10.1109/LPT.2008.918820Search in Google Scholar
21. Russell PS, Hölzer P, Chang W, Abdolvand A, Travers J. Hollow-core photonic crystal fibres for gas-based nonlinear optics. Nat Photon. 2014;8:278–86.10.1038/nphoton.2013.312Search in Google Scholar
22. Liu Y, Pan Q, Xie X, Che Y, Li J. Wavelength dependent birefringence in dual-core hybrid photonic crystal fibre. In: Electronics, Information Technology and Intellectualization: Proceedings of the International Conference EITI 2014, Shenzhen, 16–17 August 2014, CRC Press, 2015:87.10.1201/b17988-22Search in Google Scholar
23. Chaudhary S, Amphawan A. Selective excitation of LG00, LG01, and LG02 modes by a solid core PCF based mode selector in MDM-RoFSO transmission system. Laser Phys. 2018;28:075106.10.1088/1555-6611/aabd15Search in Google Scholar
24. Amphawan A, Fazea Y. Laguerre-Gaussian mode division multiplexing in multimode fiber using SLMs in VCSEL arrays. J Eur Opt Soc-Rapid Publ. 2016;12:12.10.1186/s41476-016-0007-7Search in Google Scholar
25. An Y, Huang L, Li J, Leng J, Yang L, Zhou P. Learning to decompose the modes in few-modes fiber with deep convolution neural network. Opt Express. 2019;27:10127–37.10.1364/OE.27.010127Search in Google Scholar PubMed
26. Kaiser T, Flamm D, Schroter S, Duparre M. Complete modal decomposition of optical fibers using CGH-based correlation filters. Opt Express. 2009;17:9347–56.10.1364/OE.17.009347Search in Google Scholar
27. Fazea Y. Numerical simulation of helical structure mode-division multiplexing with nonconcentric ring vortices. Opt Commun. 2019;437:303–11.10.1016/j.optcom.2018.12.002Search in Google Scholar
28. Huang L, Lü H, Zhou P, Leng J, Guo S, Cheng XA. Modal decomposition for large-mode-area fibers using stochastic parallel gradient descent algorithm. Advanced solid state lasers. Optical Society of America, 2014. OSA Technical Digest (online), paper AM5A.42. China: Shanghai.10.1364/ASSL.2014.AM5A.42Search in Google Scholar
29. Ghatak A, Thyagarajan K. An introduction to fiber optics. Cambridge: Cambridge University Press, 1998.10.1017/CBO9781139174770Search in Google Scholar
30. Kim I, Mcarthur B, Korevaar E. Comparison of laser beam propagation at 785 and 1550 nm in fog and haze for optical wireless communications. In: Proceedings of SPIE Optical Wireless Communication, vol. 6303, 2006.Search in Google Scholar
31. Sarangal H, Singh A, Malhotra J, Chaudhary S. A cost effective 100 Gbps hybrid MDM-OCDMA-FSO transmission system under atmospheric turbulences. Opt Quantum Electron. 2017;49:184.10.1007/s11082-017-1019-2Search in Google Scholar
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