High Erbium-doped ASE source using optical circulator and fiber loop mirror based on the double pass double stage configuration

摘要

Based on the double-pass double-stage configuration, a better high erbium-doped (4000ppm) amplified spontaneous emission (ASE) configuration with an optical circulator and two (fiber loop mirror) FLMs first used together is experimentally presented, which provides us a output power of more than 0.79dBm and a 3dB line width of 85.3 nm ranging form 1526.017nm to 1611.317nm with the max-wave ripple reduced to 0.4dBm after 1530nm. A simulated profile flattened to 0.4dB is gained from Optisystem 3.0, where we even get a bandwidth of 110nm while the output power reach 3.5dBm