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Thermal Lensing Compensation in the Development of 30 fs Pulse Duration Chirped Pulse Amplification Laser System and Single-Shot Intensity-Phase Measurement

100%
Imran T., Hussain M.
Acta Physica Polonica A
|
2018
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vol. 133
|
issue 1
28-31
EN
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 ım819 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. The Strehl ratio and M² value measured by employing the Shack-Hartman wavefront sensor HASO4 to observe the spatial profile and beam quality. The most sensitive single-shot second harmonic generation frequency-resolved optical gating diagnostic technique is employed to characterize intensity and phase of the output compressed laser pulses.
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Operation of Fabry-Perot laser with nonlinear PT-symmetric mirror

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Mossakowska-Wyszyńska A., Witoński P., Szczepański P., Mossakowska-Wyszyńska A., Witoński P., Szczepański P.
|
2021
3
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Advanced Photonic and Electronic Systems WILGA 2018

51%
Romaniuk R. S.
International Journal of Electronics and Telecommunications
|
2018
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vol. 64
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issue 3
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