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Highly flexible ultrafast laser system with 260W average power
|Clarkson, W.A. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:|
Solid state lasers XX. Technology and devices : 23 - 27 January 2011, San Francisco, California, United States
Bellingham, WA: SPIE, 2011 (Proceedings of SPIE 7912)
|Conference "Solid State Lasers - Technology and Devices" <20, 2011, San Francisco/Calif.>|
Photonics West Conference <2011, San Franciso/Calif.>
|Fraunhofer ILT ()|
A flexible ultrafast laser amplifier system based on Ytterbium Innoslab technology with an average power exceeding 200W is presented. The pulse duration of the system can be continuously tuned between 500fs and 6ps, limited only by the amplification bandwidth of Yb:YAG and the stretcher of the seed source. The repetition rate can be varied from 26.6MHz down to 1MHz. For the ps-regime more than 200J and for the fs-regime more than 50J are demonstrated without the need of temporal compression of the high power beam after the amplifier. Spectral bandwidth is close to the transform limit of the shortest measured pulses. Beam quality is measured to be near the diffraction limit (M2<1.3).