A self-pulsating laser diode under external drive shows the nonlinear dynamical effects of two competing frequencies. One can establish a route to chaos by increasing the modulation current. However, when the modulation frequency is varied, the chaotic state is suddenly destroyed at the harmonic frequencies of the self-pulsating frequency. This approach therefore offers a simple chaotic light source for possible optical chaotic communication.
© 1999 Optical Society of America
(140.1540) Lasers and laser optics : Chaos
(140.2020) Lasers and laser optics : Diode lasers
(140.5960) Lasers and laser optics : Semiconductor lasers
(270.3100) Quantum optics : Instabilities and chaos
C. Juang, M. R. Chen, and J. Juang, "Nonlinear dynamics of self-pulsating laser diodes under external drive," Opt. Lett. 24, 1346-1348 (1999)