A Peltier cooled single pass amplifier for Titanium:Sapphire laser pulses
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We report on a Peltier cooled single pass amplifier for high repetition rate Titanium:sapphire laser pulses. Pumped with 14 W and seeded with around 400 mW, the output reaches 1.1 W with good beam quality. This amplifier is very user-friendly, easy to maintain and set up and thus represents a device situated between more complicated liquid-nitrogen cooled amplifiers that can operate at higher pump power, and very simple near to room temperature amplifiers that can only be pumped with less power. In addition, we show the results of a finite element simulation on the temperature distribution in a liquid nitrogen cooled amplifier setup designed for highest output powers.
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