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Optica Publishing Group
  • International Conference on Quantum Electronics
  • OSA Technical Digest (Optica Publishing Group, 1988),
  • paper ThC5

FIRST OBSERVATION OF DETERMINISTIC CHAOS IN SINGLE-MODE LASER SYSTEM WITH SATURABLE ABSORBER

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Abstract

We report the first theoretical prediction and experimental evidence of deterministic chaos in a single-node laser with saturable absorber (LSA). A single-mode laser containing a saturable absorber inside the cavity shows a periodic self-pulsation well known as passive Q-switching (PQS). Dynamical properties of the gain (laser) and loss (absorber) media critically influence the transient PQS pulse structures. In a CO2 laser with a gaseous absorber, various types of PQS are observed depending on the lasing conditions and characteristics of the absorbing molecules. Typical examples of the PQS pulses are shown in Fig.1 (a)-(d). We call them single spikes [(a)], sinusoidal modulation [(b)], and PQS with undulation [(c) and (d)].

© 1988 Optical Society of America

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