Non-stationary characteristics of instability in a single-mode Nd:YVO4 laser with fiber feedback T.-H. Yang, T.-S. Lim, J.-L. Chern and K. Otsuka Eur. Phys. J. D, 15 3 (2001) 365-371 Published online: 15 September 2001 DOI: 10.1007/s100530170153