Abstract
This paper reports the first observation on the chaotic emission from a class A laser. A single mode He-Ne (6328Å) laser which had an external mirror with a PZT was used. Varying the vibrational frequency of the PZT, time series of laser output power were observed, from which the strange attractors in the phase space, finite correlation dimension, positive Lyapunov exponents were obtained. As results, around 100Hz of the PZT frequency, the chaotic emission was recognized.
