What is it about?
We present 30 fs pulse duration home-made chirped pulse amplification Ti:sapphire laser system operating at a repetition rate of 1 kHz with 4.0 mJ pulse energy. The Ti:sapphire laser system with ∼ 819 nm center wavelength has a long-cavity oscillator, four pass grating stretcher, 8-pass pre-amplifier, 4-pass post-amplifier and a double pass grating compressor. The Peltier coolers and thermal eigenmode post-amplifier are introduced to compensate the thermal lensing of the crystal in the amplifiers and to enhance the beam focusability on the crystal.
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Why is it important?
The thermal lens effect and thermal distortion were compensated by em- ploying the Peltier coolers and thermal eigenmode in the post-amplifier.
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This page is a summary of: Thermal Lensing Compensation in the Development of 30 fs Pulse Duration Chirped Pulse Amplification Laser System and Single-Shot Intensity-Phase Measurement, Acta Physica Polonica A, January 2018, Institute of Physics, Polish Academy of Sciences,
DOI: 10.12693/aphyspola.133.28.
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