Open AccessRealization of an Analog Computing Circuit for Simulating a Chaotic Electro Optic System and Validation of Model using Lyapunov Exponent
Author(s) -
Aditi Datta,
Anjan Ghosh,
Anjan Mukherjee
Publication year - 2019
Publication title -
international journal of innovative technology and exploring engineering
Language(s) - English
Resource type - Journals
ISSN - 2278-3075
DOI - 10.35940/ijitee.l3851.129219
Subject(s) - chaotic , lyapunov exponent , optical chaos , computer science , nonlinear system , realization (probability) , optical communication , electronic engineering , signal (programming language) , secure communication , communications system , encryption , telecommunications , physics , optics , mathematics , engineering , artificial intelligence , semiconductor laser theory , laser , statistics , quantum mechanics , programming language , operating system
Chaotic optical communication is attractive for its security because in such type of communication optical signal is encrypted using the optical chaos and decrypted at the receiver side with identical chaotic key. Chaotic signals are created using nonlinear optical systems with sensitive dependence in initial condition. In our work we have chosen an Electro Optic modulator based nonlinear optical system for producing optical chaos. However the optical devices are costly and not easily accessible. Hence to overcome this difficulty we have created a nonlinear analog computing circuit capable of producing chaotic signals as those of nonlinear Electro Optic or Acusto Optic system. Extensive numerical experiments have been conducted on this electronic system for studying its chaotic behaviour and it has been found that our electronic simulator is able to mimic the actual Electro Optic system up to a large extent.