Nonlinear Phenomena in Complex Systems, 2001, Vol.4, No.1, pp.90--93

NONLINEAR PHENOMENA IN COMPLEX SYSTEMS
An Interdisciplinary Journal

2001, Volume 4, Number 1, pp.90-93

Control of Dynamic Behavior in the Bistable Region of Laser Diodes
L.I. Burov, V.K. Kononenko, M.I. Kramar, and G.I. Ryabtsev

Possibility of the forming of chaotic laser oscillation series using directly modulated laser diodes with two asymmetric quantum-well active layers has been demonstrated. The main feature of such chaotic regime is setting a modulation mean current within the hysteresis region of the laser diode power-current characteristic with harmonic modulation amplitudes being adjusted to two hysteresis threshold current values. Numerical calculations were made for 1.55 µm InGaAsP/InP laser diodes and condition of lasing the non-periodic pulse series was obtained. It was shown that characteristics of these series greatly depend on the modulation amplitude and mean current values.
Key words: laser diodes, quantum well, chaos, hysteresis, modulation

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