Assessment of Highly Performance Secure Optical Communication Systems based on Chaotic Design

  • Nesreen M. Al-Saidi Computer Engineering Department, College of Engineering, Al-Iraqia University, Baghdad, Iraq
  • Mudhafar H. Ali Computer Engineering Department, College of Engineering, Al-Iraqia University, Baghdad, Iraq
الكلمات المفتاحية: Fiber optic, DWDM, chaotic stream segmentation (CSS), stream ciphers, Optisystem simulation programs


As optical communication system deployment is expensive, and reconfiguration is occasionally impossible or costly, system experiments and simulations have become necessary for predicting and optimizing system performance. OptiSystem is a cutting-edge optical communication simulation tool for designing, testing, and optimizing nearly any kind of optical connection in the physical layer of a wide range of optical systems. This paper proposed single-mode fiber as a transmitting medium for encrypted data. We examined a Dense Wavelength Division Multiplexing (DWDM) system with eight channels operating at 10 Gbps. A large capacity 80 Gbps system with a frequency range of 193.1 THz–193.8 THz and a Non-Return to Zero (NRZ) modulation format is analyzed in the proposed design. The results show that the proposed scheme can effectively transmit secure data based on new chaotic systems. MATLAB is used to implement the encryption and decryption processes, whereas some statistical analysis and OptiSystem 7 are used to assess the signal transmission in optical fibers. The performance of the proposed system is evaluated in terms of Quality Factor (Q-factor), Bit Error Rate (BER) and eye .diagram. It is observed that by varying the input power from -15 dBm to 15 dBm with step of 5 dBm, a low BER with a high Q-factor has the best values at 5 dBm of input signal power , where the maximum Q-factor is 42.2797, and the minimum BER of 0 is obtained for 100 km of optical fiber length. A slightly degradation in system performance was abserved with increasing of fiber length from 50 km to 125 km.


[1] L. Yi, T. Zhang, Z. Li, J. Zhou, Y. Dong, and W. Hu, “Secure optical communication using stimulated Brillouin scattering in optical fiber,” Opt. Commun., vol. 290, pp. 146–151, 2013.
[2] Y. Frauel, A. Castro, T. J. Naughton, and B. Javidi, “Resistance of the double random phase encryption against various attacks,” Opt. Express, vol. 15, no. 16, pp. 10253–10265, 2007.
[3] Z. Gao et al., “40Gb/s secure optical communication based on symbol-by-symbol optical phase encryption,” IEEE Photonics Technol. Lett., vol. 32, no. 14, pp. 851–854, 2020.
[4] B. P. Alapatt, A. Kavitha, and J. Amudhavel, “A novel encryption algorithm for end to end secured fiber optic communication,” Int. J. Pure Appl. Math., vol. 117, no. 19 Special Issue, pp. 269–275, 2017.
[5] A. Bisht, M. Dua, S. Dua, and P. Jaroli, “A color image encryption technique based on bit-level permutation and alternate logistic maps,” J. Intell. Syst., vol. 29, no. 1, pp. 1246–1260, 2020.
[6] Z. Hua, F. Jin, B. Xu, and H. Huang, “2D Logistic-Sine-coupling map for image encryption,” Signal Processing, vol. 149, pp. 148–161, 2018.
[7] M. H. Al Hasani and K. A. M. Al Naimee, “Quantum Key Distribution and Chaos Bandwidth Effects on Impact Security of Quantum Communications,” Iraqi J. Sci., pp. 1266–1273, 2019.
[8] X. Qian, Q. Yang, Q. Li, Q. Liu, Y. Wu, and W. Wang, “A novel color image encryption algorithm based on three-dimensional chaotic maps and reconstruction techniques,” IEEE Access, vol. 9, pp. 61334–61345, 2021.
[9] B. Norouzi, S. Mirzakuchaki, S. M. Seyedzadeh, and M. R. Mosavi, “A simple, sensitive and secure image encryption algorithm based on hyper-chaotic system with only one round diffusion process,” Multimed. Tools Appl., vol. 71, no. 3, pp. 1469–1497, 2014.
[10] J. Liu, Y. Wang, Q. Han, and J. Gao, “A Sensitive Image Encryption Algorithm Based on a Higher-Dimensional Chaotic Map and Steganography,” Int. J. Bifurc. Chaos, vol. 32, no. 01, p. 2250004, 2022.
[11] L. Jiang et al., “Trading off security and practicability to explore high-speed and long-haul chaotic optical communication,” Opt. Express, vol. 29, no. 8, pp. 12750–12762, 2021.
[12] X. Bao, Q. Li, T. Wu, Y. Deng, M. Hu, and R. Zeng, “WDM-based bidirectional chaotic communication for semiconductor lasers system with time delay concealment,” Opt. Commun., vol. 472, p. 125868, 2020.
[13] N. M. G. Al-Saidi, D. Younus, H. Natiq, M. R. K. Ariffin, M. A. Asbullah, and Z. Mahad, “A new hyperchaotic map for a secure communication scheme with an experimental realization,” Symmetry (Basel)., vol. 12, no. 11, p. 1881, 2020.
[14] D. Younus, N. M. G. Al-Saidi, and W. K. Hamoudi, “Secure optical communication based on new 2D-hyperchaotic map,” in AIP Conference Proceedings, 2019, vol. 2183, no. 1, p. 90006.
[15] M. S. Fadhil, A. K. Farhan, M. N. Fadhil, and N. M. G. Al-Saidi, “A New Lightweight AES Using a Combination of Chaotic Systems,” in 2020 1st. Information Technology To Enhance e-learning and Other Application (IT-ELA, 2020, pp. 82–88.
[16] H. Natiq, M. R. M. Said, N. M. G. Al-Saidi, and A. Kilicman, “Dynamics and complexity of a new 4d chaotic laser system,” Entropy, vol. 21, no. 1, p. 34, 2019.
[17] D. Veeman, H. Natiq, N. M. G. Al-Saidi, K. Rajagopal, S. Jafari, and I. Hussain, “A new megastable chaotic oscillator with blinking oscillation terms,” Complexity, vol. 2021, 2021.
[18] S. R. Tahhan, A. K. Abass, and M. H. Ali, “Characteristics of chirped fiber bragg grating dispersion compensator utilizing two apodization profiles,” J. Commun., vol. 13, no. 3, 2018, doi: 10.12720/jcm.13.3.108-113.
[19] F. Abdullah, M. Z. Jamaludin, M. H. Ali, M. H. Al-Mansoori, A. K. Abass, and T. F. Al-Mashhadani, “Influence of Raman Pump Direction on the Performance of Serial Hybrid Fiber Amplifier in C + L-Band,” in 2018 IEEE 7th International Conference on Photonics (ICP), 2018, pp. 1–3.
[20] S. H. Alnajjar, M. H. Ali, and A. K. Abass, “Enhancing Performance of Hybrid FSO/Fiber Optic Communication Link Utilizing Multi-Channel Configuration,” J. Opt. Commun., 2019, doi: 10.1515/joc-2018-0193.
[21] S. Singh and R. S. Kaler, “Investigation of hybrid optical amplifiers with different modulation formats for DWDM optical communication system,” Optik (Stuttg)., vol. 124, no. 15, pp. 2131–2134, 2013.
[22] S. M. Abdulsatar, M. A. Saleh, A. K. Abass, M. H. Ali, and M. A. Yaseen, “Bidirectional hybrid optical communication system based on wavelength division multiplexing for outdoor applications,” Opt. Quantum Electron., vol. 53, no. 10, pp. 1–11, 2021.
[23] A. A. Khadir, B. F. Dhahir, and X. Fu, “Achieving optical fiber communication experiments by optisystem,” Int. J. Comput. Sci. Mob. Comput., vol. 3, no. 6, pp. 42–53, 2014.
[24] T. Hiraki et al., “Integration of a high-efficiency Mach-Zehnder modulator with a DFB laser using membrane InP-based devices on a Si photonics platform,” Opt. Express, vol. 29, no. 2, pp. 2431–2441, 2021.
[25] S. Lawan, M. Ajiya, and D. Shu’Aibu, “Numerical simulation of chromatic dispersion and fiber attenuation in a single-mode optical fiber system,” Signal, vol. 10, no. 10, p. 3, 2012.
[26] M. H. Ali, F. Abdullahi, M. Z. Jamaludini, M. H. AI-Mansoori2, T. F. AI-Mashhadani, and A. K. Abassi, “Effect of EDF Position on the Performance of Hybrid Dispersion-Compensating Raman/EDF Amplifier,” in 4th International Conference in Photonics (ICP), 2013, pp. 187–189. Accessed: Jun. 28, 2014. [Online]. Available:
[27] L. Sirleto and M. A. Ferrara, “Fiber amplifiers and fiber lasers based on stimulated Raman scattering: a review,” Micromachines, vol. 11, no. 3, p. 247, 2020.
[28] N. S. Effendi, Y. Natali, and C. Apriono, “Study of Dispersion Compensation with Dispersion Compensating Fiber in 10 Gbps Single-Mode Fiber,” in 2021 International Conference on Green Energy, Computing and Sustainable Technology (GECOST), 2021, pp. 1–6.
[29] S. R. Tahhan, M. H. Ali, and A. K. Abass, “Characteristics of Dispersion Compensation for 32 Channels at 40 Gb/s under Different Techniques,” J. Opt. Commun., vol. 41, no. 1, pp. 57–65, 2017, doi: 10.1515/joc-2017-0121.