Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1988),
  • paper TUM8

Observation of a new range of modulation frequencies for studying dynamic unstable behavior in single-mode CO2 lasers

Not Accessible

Your library or personal account may give you access

Abstract

In cases where one of the dynamic variables of single-mode lasers undergoes adiabatic elimination, modulation of pump loss or frequency has been found to be an effective way of enlarging the phase space dimension of these lasers, which in turn lose their stability through a universal route. In CO2 lasers, in particular, such modulation has been widely used by various researchers, which has led to the observation of a wealth of instability results. When the depth of modulation is very small, the laser intensity describes conventional forced damped oscillatory motion.1 The impact of modulation on the laser intensity, therefore, shows a resonance at relaxation oscillation frequency of the laser. Indeed the modulation in the neighbor-hood of the relaxation frequency has been used in almost all the works reported to date. Contrary to this, we, however, reported recently that a cw CO2 laser with predominantely homogeneously broadened transition shows chaotic behavior when the gain is modulated even at a frequency much lower than the relaxation oscillation frequency.2 Here we present experimental results showing the existence of resonance at a very low frequency hitherto unknown for CO2 lasers. This has been confirmed by the measurements made with both gain and frequency modulation.

© 1988 Optical Society of America

PDF Article
More Like This
Theoretical analysis of the dynamic behavior of a fast axial flow CO2 laser amplifier

HEIHACHI SATO and EIICHI TSUCHIDA
FD5 Conference on Lasers and Electro-Optics (CLEO:S&I) 1988

Intracavity CO2 laser modulation: periodic and aperiodic behavior

G. P. PUCCIONI, A. POGGI, W. GADOMSKY, F. T. ARECCHI, and J. R. TREDICCE
THM37 Conference on Lasers and Electro-Optics (CLEO:S&I) 1985

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

Maki Tachikawa, Feng-Lei Hong, Takehisa Tohei, Kazuhito Tanii, and Tadao Shimizu
ThC5 International Quantum Electronics Conference (IQEC) 1988

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved