Efficiency of output power in ring cavity of erbium doped fiber laser

Abstract

The output power and efficiency of erbium doped fibre laser (EDFL) based on ring configuration have been proposed and presented. Erbium doped fibre laser is demanded in fibre laser technology as it features 1.5 micron wavelength region which has attracted much interest due its potential in many applications such as optical communication and optical sensor application. Therefore, an optical hands-on rare earth doped fibre laser experiment made in ring cavity has been proposed and experimentally demonstrated. This experiment is achieved by utilizing erbium (Er3+) doped fibre as its gain medium in the cavity. The fibre ring cavity laser consist of EDFL, 980 nm pumping source laser diode, wavelength division multiplexing (WDM), output coupler, OSA, and optical power meter. The results for optical spectrum laser threshold and efficiency of EDFL ring cavity are analysed.