Characterization and Long-Term Operation of a 200 W Single-Frequency Fiber Amplifier for Gravitational Wave Detectors
Laser Congress 2019 (ASSL, LAC, LS&C)
29. September - 03. Oktober
We developed and operated a 200 W single-frequency fiber amplifier at 1064 nm for > 695h. We observed no signs of stimulated Brillouin scattering. Excellent noise properties and a TEM00-mode content of 94.8 \% were demonstrated.