Stable and tunable fiber double-ring laser based on an erbium-doped waveguide amplifier

Abstract

A stable and tunable fiber double-ring laser based on an erbium-doped waveguide amplifier (EDWA) is proposed and experimentally demonstrated. A widely tunable range from 1527 to 1567 nm, the side-mode suppression ratio (SMSR) of > 45.6 dB/0.05 nm and the output power of > 1.04 dBm in the operating range from 1535 to 1565 nm can be achieved for this ring laser. By applying the double-ring configuration, the ring laser is stabilized. The central wavelength variation of < 0.02 nm and the power fluctuation of < 0.03 dBm can therefore be retrieved. (c) 2005 Society of Photo-Optical Instrumentation Engineers.