Efficient 2.9 μm fluorozirconate glass waveguide chip laser.
We report a large mode-area holmium-doped ZBLAN waveguide laser operating at 2.9 μm, which was pumped by a 1150 nm diode laser. The laser is based on ultrafast laser inscribed depressed cladding waveguides fabricated in uniformly rare-earth-doped bulk glass. It has a threshold of 28 mW and produced up to 27 mW of output power at an internal slope efficiency of approximately 20%.
Institute for Photonics and Advanced Sensing and School of Chemistry and Physics, University of Adelaide, South Australia, Australia. david.lancaster@adelaide.edu.au
David G
DG
Lancaster
Simon
S
Gross
Heike
H
Ebendorff-Heidepriem
Michael J
MJ
Withford
Tanya M
TM
Monro
Stuart D
SD
Jackson