Design and Simulation of a Novel Photonic Crystal Fiber with a Low Dispersion Coefficient in the Terahertz Band

  • Saeed Talati Faculty of Electronic Warfare Engineering, Shahid Sattari University of aeronautical Science and Technology
  • Alireza Amjadi Shahid Sattari University of aeronautical Science and Technology
Keywords: Photonic crystal fiber, dispersion, refractive index, substrate.


In this paper, a hexagonal solid state photonic crystal fiber at 10 terahertz is presented. First, by finding the main conductive fashion and its dispersion, the dispersion variation evaluation is based on the constant changes of the fiber network in the main mode with the aim of achieving the least dispersion. In the next section, dispersion changes are measured and evaluated based on changes in the radius size of the cavities of the photonic crystal fiber area. Then the fiber-forming holes have become elliptical geometry, and the size of the disintegration has been discussed for this change. Finally, by changing the refractive index of the fiber region, the size of the disintegration has been investigated. The optimized structure is obtained for the geometries of all the steps that have the least disintegration. In this way, the proposed structure has a dispersion of -75×10-3 picosecond per nanometer per kilometer, which is a good fit for similar designs.


[1] H. Ademgil, S. Haxha, "PCF based sensor with high sensitivity high birefringence and low confinement losses for liquid analyte sensing applications", Sensors, vol. 15, no. 12, pp. 31833-31842, 2015.
[2] B. K. Paul, M. S. Islam, K. Ahmed, S. Asaduzzaman, "Alcohol sensing over O+E+S+C+L+U transmission band based on porous cored octagonal photonic crystal fiber", Photon. Sensors, vol. 7, no. 2, pp. 123-130, 2017.
[3] X.-D. Wang, O. S. Wolfbeis, "Fiber-optic chemical sensors and biosensors (2013–2015)", Anal. Chem., vol. 88, no. 1, pp. 203-227, 2016.
[4] E. Arik, C. Koral, H. Altan, O. Esenturk, "A new method for alcohol content determination of fuel oils by terahertz spectroscopy", Proc. 38th Int. Conf. Infr. Millim. Terahertz Waves (IRMMW-THz), pp. 1, Sep. 2013.
[5] S. Bagchi, R. Achla, S. K. Mondal, "Electrospun polypyrole-polyethylene oxide coated optical fiber sensor probe for detection of volatile compounds", Sens. Actuators B Chem., vol. 250, pp. 52-60, Oct. 2017.

[6] A. M. R. Pinto, M. Lopez-Amo, "Photonic crystal fibers for sensing applications", J. Sensors, vol. 2012, Feb. 2012.
[7] H. Ademgil, "Highly sensitive octagonal photonic crystal fiber based sensor", Optik-Int. J. Light Electron Opt., vol. 125, no. 20, pp. 6274-6278, 2014.
[8] M. Walther, B. M. Fischer, A. Ortner, A. Bitzer, A. Thoman, H. Helm, "Chemical sensing and imaging with pulsed terahertz radiation", Anal. Bioanal. Chem., vol. 397, no. 3, pp. 1009-1017, 2010.
[9] J. S. Drukteinis, B. P. Mooney, C. I. Flowers, R. A. Gatenby, "Beyond mammography: New frontiers in breast cancer screening", Amer. J. Med., vol. 126, no. 6, pp. 472-479, 2013.
[10] Rahman, A. K. Rahman, B. Rao, "Early detection of skin cancer via terahertz spectral profiling and 3D imaging", Biosensors Bioelectron., vol. 82, no. 15, pp. 64-70, 2013.
[11] M. S. Islam et al., "A novel approach for spectroscopic chemical identification using photonic crystal fiber in the terahertz regime", IEEE Sensors J., vol. 18, no. 2, pp. 575-582, Jan. 2018.
[12] M. S. Islam et al., "Extremely low material loss and dispersion flattened TOPAS based circular porous fiber for long distance terahertz wave transmission", Opt. Fiber Technol., vol. 34, pp. 6-11, Mar. 2016.
[13] J. Anthony, R. Leonhardt, A. Argyros, M. C. J. Large, "Characterization of a microstructured Zeonex terahertz fiber", J. Opt. Soc. Amer. B Opt. Phys., vol. 28, no. 5, pp. 1013-1018, May 2011.
[14] Hashemi. Seyed Mohammad, Abyari. Mohammad, Barati. Shahrokh, Tahmasebi Sanaz, Talati, Saeed. “A PROPOSED METHOD TO CONTROLLER PARAMETER SOFT TUNING AS ACCOMMODATION FTC AFTER UNKNOWN INPUT OBSERVER.” ARPN Journal of Engineering and Applied Sciences VOL. 11, NO. 5, MARCH 2016.
[15] S. Talati, A. Rahmati, and H. Heidari, “Investigating the Effect of Voltage Controlled Oscillator Delay on the Stability of Phase Lock Loops”, MJTD, vol. 8, no. 2, pp. 57-61, May 2019.
[16] Saeed. Talati, Behzad. Ebadi, Houman. Akbarzade “Determining pf the fault location in distribution systems in presence of distributed generation resources using the original post phasors“QUID 2017, pp. 1806-1812, Special Issue No.1- ISSN: 1692-343X, Medellín-Colombia. April 2017
[17] Saeed Talati, mohamadreza Hasani Ahangar, “Analysis, Simulation and Optimization of LVQ Neural Network Algorithm and Comparison with SOM”, MJTD, vol. 10, no. 1, Jan. 2020.
[18] Saeed Talati, pouriya etezadifar, “Providing an Optimal Way to Increase the Security of Data Transfer Using Watermarking in Digital Audio Signals”, MJTD, vol. 10, no. 1, Feb. 2020.
How to Cite
Talati, S., & Amjadi, A. (2020). Design and Simulation of a Novel Photonic Crystal Fiber with a Low Dispersion Coefficient in the Terahertz Band. Majlesi Journal of Mechatronic Systems, 9(2), 23-28. Retrieved from