Portal de Periódicos da CAPES

Theory of laser diodes with weak optical feedback II Limit-cycle behavior, quasi-periodicity, frequency locking, and route to chaos

1993; Optica Publishing Group; Volume: 10; Issue: 1 Linguagem: Inglês

10.1364/josab.10.000145

1520-8540

A. L. Ritter, Hartmut Haug,

Photonic and Optical Devices

The nonlinear behavior of the deterministic equations that describe the optical feedback system is investigated. An analytic expression for the amplitude of the self-pulsations that occur when the relaxation oscillations (RO's) become undamped is derived and compared with numerical results. For small amplitudes a square-root law, which is typical for Hopf bifurcations, is found. For increased feedback levels a second Hopf bifurcation occurs, and a frequency related to the second type of RO predicted by the small-signal analysis of part I [ J. Opt. Soc. Am. B10, 130 ( 1993)] emerges. Frequency-locked and quasi-periodic solutions arise. The occurrence of a third frequency is a precursor of chaotic motion. The transition to chaos is determined by a switching between two unstable attractors.