Eur. Phys. J. D 15, 365-371 (2001)
https://doi.org/10.1007/s100530170153

Non-stationary characteristics of instability in a single-mode Nd:YVO₄ laser with fiber feedback

¹ Department of Physics, National Cheng Kung University, Tainan 70101, Taiwan ROC
² Department of Applied Physics, Tokai University, 1117 Kitakaname Hiratsuka, Kanagawa 259-1292, Japan

Corresponding author: ^a tslim@phys.ncku.edu.tw

Received: 28 March 2001
Revised: 5 June 2001
Published online: 15 September 2001

Abstract

Random chaotic burst generation was experimentally observed in a single-mode microchip Nd:YVO₄ laser with fiber feedback. As the feedback strength was increased, a transition from stable relaxation oscillation state to unstable random chaotic burst state appeared. Furthermore, the non-stationary characteristic of probability association was experimentally identified at the transition of the two states while similar characteristics were reported only by numerical simulations of simple dynamical systems. This implies the general feature of non-stationary property of the dynamic switching between two states at transition. The observed chaotic burst generation and non-stationary nature were reproduced numerically based on the Lang-Kobayashi model.