All-fiber 600nm amplified spontaneous emission (ASE) source covering the spectral range of 2.75μm to 3.35μm

摘要

We prove the possibility of generating an amplified spontaneous emission (ASE) source using all fiber laser configuration that uses 1.2-meter single mode (SM) Dysprosium ions (Dy~(3+)) doped ZBLAN fiber with core diameter and concentration of 12.5μm and 2000ppm respectively as the gain medium. The ZBLAN fiber is directly fusion spliced to the output of 5-watt ytterbium (Yb) doped fiber laser with the center wavelength of 1094nm. The measured spectrum spans about 600nm starting around 2.75μm to 3.35μm and provides a total power of about 83mW. We demonstrate that our approach is more cost-effective and efficient than other systems previously reported and it opens new windows for wideband tunable fiber laser sources at 3 μm spectral region.