Innovative Security Technology for Optical Fiber Data Transmission Using Optical Vortex
This article presents system concept of the use of an optical vortex phenomenon for secure data exchange in the optical fiber line. Optical vortices are obtained in free space, and then they are introduced into the optical fiber. Their properties are examined in the world [1-2], so far, which directly shows the ability to increase the bandwidth of optical fiber. Given the structure and characteristics of the optical vortex, the authors propose to set a secure optical link. Such link can be provided in two ways.
The first method involves coding an information on optical vortex. The data in the optical fiber line can be coded by time-position modeling of the optical properties of the vortex. In addition, changing the topology of the optical vortex and the use of mode dependencies also offer the possibility of information coding.
The second way to use the vortex in the optical fiber is setting of optical fiber sensor, sensitive to the disturbance of fiber-optic transmission line. It can be achieved by propagation both - coded information in basic mode and an optical vortex in a microstructural fiber. In the case of physical impact on optical fiber the vortex disturbs the flow of data, forming the information noise on the output of the fiber.The article presents the setup of the generation of optical vortex, for the telecommunications bandwidth, developed at the Institute of Optoelectronics, in the Security Systems Group and initial tests of the setup
N. Bozinovic, “Orbital angular momentum in optical fibers,” Ph.D. dissertation, College of Eng., Boston Univ., United States, 2013.
W. Fraczek, “Interferometric measurement of optical field phase distribution using the phase discontinuity,” Ph.D. dissertation, Lower Silesian Digital Library, 2008.
R. J. Essiambre and R. W. Tkach, “Capacity trends and limits of optical communication networks,” Proc. of the IEEE, vol. 100, no. 5, pp.1035- 1055, May 2012.
C. Brunet and L. A. Rusch, “Optical fibers for the transmission of orbital angular momentum modes,” Optical Fiber Technology, vol. 31, pp. 172-177, September 2016
N. Bozinovic, Y. Yue, Y. Ren, M. Tur, P. Kristensen, H. Huang, et al., “Terabit-scale orbital angular momentum mode division multiplexing in fibers,” Science, vol. 340, no. 6140, pp. 1545-1548, 2013.
J. Albero, P. Garcia-Martinez, N. Bennis, E. Oton, B. Cerrolaza, I. Moreno, et al., “Liquid crystal devices for the reconfigurable generation of optical vortices,” Journal of Lightwave Technology, vol. 30, no. 18, pp. 3055-3060, 2012.
J. Kędzierski, M. A. Kojdecki, Z. Raszewski, J. Zieliński, “Frederiks transitions and their role in determining material constants of liquid crystals,” Chapter of monograph: Complementary methods in study of condensed phases, pp. 242-271, 2008.
Submission of a manuscript implies: that the work described has not been published before that it is not under consideration for publication elsewhere; that if and when the manuscript is accepted for publication. Authors can retain copyright of their article with no restrictions. Also, author can post the final, peer-reviewed manuscript version (postprint) to any repository or website.
Since Oct. 01, 2015, PETI will publish new articles with Creative Commons Attribution Non-Commercial License, under The Creative Commons Attribution Non-Commercial 4.0 International (CC BY-NC 4.0) License.
The Creative Commons Attribution Non-Commercial (CC-BY-NC) License permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes