Yb/Al-codoped fused-silica planar-waveguide amplifier
Abstract
We report an Yb/Al-codoped fused silica planar waveguide amplifier with <0.2 dB/cm passive loss and 0.6 dB/cm gain, featuring a high damage threshold (>0.1 GW/cm2) and a relatively large core (20 μm thick). Waveguide fabrication is based on a novel silica-on-silica technology combining modified-chemical-vapor deposition and a high temperature CO2 laser treatment for making high-power photonic devices.
- Publication:
-
Optical Materials
- Pub Date:
- May 2016
- DOI:
- 10.1016/j.optmat.2016.03.017
- Bibcode:
- 2016OptMa..55...49A
- Keywords:
-
- Rare-earth doped silica;
- Slab waveguide;
- Optical transmittance;
- Optical gain;
- Laser heat treatment
