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Proceedings Paper

Nonlinear optical fiber interferometer: a model and simulation
Author(s): I. V. Izmailov; B. N. Poizner; I. V. Romanov
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Paper Abstract

Optical scheme of three-channel nonlinear fiber-optic lightguide interferometer (NFOLI) is developed. The base of mathematical model of processes in NFOLI is two ordinary differential equations describing dynamics of nonlinear phase shift of light field in the core and in the facing of optical fiber. Phase portraits and Fourier spectrum are constructed. It is obvious that under various parameters in the model regimes of static state, periodical oscillations and deterministic chaos are possible. The optical scheme of three-channel nonlinear optical fiber interferometer (NFOLI) contains three inputs and three outputs, nonlinear medium (NM), which is single mode step-graded index lightguide doped by HgCdTe. Relaxation time of the material nonlinear acceptability τ=10-12s, nonlinear refractive index n2=10-6 cm2/W. The base of mathematical model of processes in NFOLI (which is constructed in relevant approximations) is two ordinary differential equations describing dynamics of nonlinear phase shift u1,ne1 of light field in the core and nonlinear phase shift u2,ne1 in the facing of fiber-optic lightguide. Simulation demonstrates that under various values of nonlinearity coefficient K in the model (1)-(7) regimes of periodical oscillations and deterministic chaos are possible. This means htat NFOLI can be service as a base of optical information security system.

Paper Details

Date Published: 8 June 2005
PDF: 6 pages
Proc. SPIE 5851, Fundamental Problems of Optoelectronics and Microelectronics II, (8 June 2005); doi: 10.1117/12.633898
Show Author Affiliations
I. V. Izmailov, Tomsk State Univ. (Russia)
B. N. Poizner, Tomsk State Univ. (Russia)
I. V. Romanov, Tomsk State Univ. (Russia)


Published in SPIE Proceedings Vol. 5851:
Fundamental Problems of Optoelectronics and Microelectronics II
Yuri N. Kulchin; Oleg B. Vitrik; Vladimir I. Stroganov, Editor(s)

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