Open AccessChaotic controlling via phase periodicity in optical injection semiconductor lasers
Author(s) -
Shihao Yan
Publication year - 2006
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.55.5109
Subject(s) - laser , modulation (music) , chaotic , wavelength , periodic function , semiconductor laser theory , physics , optics , phase (matter) , semiconductor , optoelectronics , quantum mechanics , computer science , artificial intelligence , acoustics
In this paper, a method of chaotic controlling is presented via controlling the phase in semiconductor lasers under to external optical injection. Chaos can be controlled to a periodic state or multi-periodic states by periodically modulating a phase-controller to control the injection light phase. Under the conditions of different intensities of injection light, numerical results shou thet: (1) Chaos is controlled into periodic state, dual-periodic state, triple-periodic state, four fold-periodic state and multi-periodic state respectively by a method of half-wavelength periodic modulation; (2) Chaos can be controlled into periodic state or multi-periodic state by the method of quarter-wavelength periodic modulation. Injection-locking phenomena in laser is produced under the conditions of high frequency modulation, where the frequency_locking domain is from 19GHz to 21GHz; (3) Chaos is also controlled into periodic state and multi-periodic state by a method of a wavelength periodic modulation.