700 MW peak power of a 380 fs regenerative amplifier with Tm:YAP
2015; Optica Publishing Group; Volume: 23; Issue: 13 Linguagem: Inglês
10.1364/oe.23.016884
ISSN1094-4087
AutoresAndreas Wienke, Dieter Wandt, Uwe Morgner, Jörg Neumann, Dietmar Kracht,
Tópico(s)Solid State Laser Technologies
ResumoWe report on a high power ultrashort pulse regenerative amplifier system, entirely based on thulium-doped laser materials operating around 1.94 μm. At a repetition rate of 1 kHz the Tm:YAP regenerative amplifier emits pulse energies > 700 μJ, only limited by the damage threshold of the Tm:YAP crystal. The pulses can be compressed to 380 fs at an efficiency of 50 %. Purging of the regenerative amplifier cavity with nitrogen is necessary due to atmospheric absorptions causing long ps pedestals in the autocorrelation.
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