Self-Pulsing and the Approach to Chaos in a Laser with Injected Signal
The emergence of self-pulsing and chaotic pulsations in bistable optical systems has been the subject of numerous investigations1,2. The behavior of a laser with an injected external signal, the active counterpart of a bistable device, has also received attention in recent times3. Spencer and Lamb4 were the first to show that the output of this system can display undamped oscillations. Yamada, Graham and collaborators5 discovered that a laser with injected signal can be driven also into chaotic oscillations. They analyzed their model by imposing the adiabatic limit on all the atomic variables, and by assuming the existence of a sinusoidal modulation of the incident field and of the pump parameter.
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- 6.We are very grateful to Professor J. Gollub of Haverford College for providing us the fast Fourier transform code used in this work.Google Scholar