Open AccessAn optimization scheme for generating of Chebyshev optical chaotic sequence
Author(s) -
Liu Hui-shi,
Xiangjun Xin,
Xingtian Yin,
YU Chong-xiu,
Qi Zhang
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.2231
Subject(s) - chebyshev filter , chaotic , interferometry , trigonometric functions , mach–zehnder interferometer , generator (circuit theory) , wavelength , chebyshev polynomials , sequence (biology) , computer science , optics , physics , topology (electrical circuits) , mathematics , mathematical analysis , quantum mechanics , power (physics) , geometry , combinatorics , artificial intelligence , biology , genetics , computer vision
The methods of generating spread-spectrum sequences with Mach-Zehnder interferometer are studied, also the principle and the scheme of a reported Chebyshev chaotic sequence generator is analyzed. To eliminate the limitation caused by the size of optical elements, a new scheme using the properties of cosine function is put forward. By using voltage to adjust the refractive index of the arms of Mach-Zehnder interferometer, a wavelength adaptive generator can be realized, with which different Chebyshev optical chaotic sequences with different input wavelengths could be obtained.