High-power widely tunable thulium fiber lasers.
Applications requiring long-range atmospheric propagation are driving the development of high-power thulium fiber lasers. We report on the performance of two different laser configurations for high-power tunable thulium fiber lasers: one is a single oscillator utilizing a volume Bragg grating for wavelength stabilization; the other is a master oscillator power amplifier system with the oscillator stabilized and made tunable by a diffraction grating. Each configuration provides >150 W of average power, >50% slope efficiency, narrow output linewidth, and >100 nm tunability in the wavelength range around 2 μm.
Townes Laser Institute, CREOL, University of Central Florida, 4000 Central Florida Boulevard, Orlando, Florida 32816, USA.
Timothy S
TS
McComb
R Andrew
RA
Sims
Christina C C
CC
Willis
Pankaj
P
Kadwani
Vikas
V
Sudesh
Lawrence
L
Shah
Martin
M
Richardson