Self-pulsing in Er3+-doped fibre laser

✍ Scribed by P. Boudec; M. Flohic; P. L. Francois; F. Sanchez; G. Stephan

• Publisher: Springer
• Year: 1993
• Tongue: English
• Weight: 499 KB
• Volume: 25
• Category: Article
• ISSN: 0306-8919
• DOI: 10.1007/bf00420691

✦ Synopsis

The output intensity of an erbium-doped fibre laser was studied. Experiments were performed with three pumping wavelengths: 514.5 nm, 810 nm and 980 nm. The laser output intensity exhibits three different dynamical behaviours: steady-state, sinusoidal variation or self-pulsing. In particular, in a bad (high-loss) cavity configuration, when the pumping ratio is increased above the lasing threshold the output intensity changes continuously from a steady-state to an infinite train of pulses. We also show that, depending on the cavity configuration, the transient oscillations display different forms.