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Date of download: 9/18/2016 Copyright © 2016 SPIE. All rights reserved. Schematic of the OPCPA laser system at Sandia National Laboratories. A stretched.

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Presentation on theme: "Date of download: 9/18/2016 Copyright © 2016 SPIE. All rights reserved. Schematic of the OPCPA laser system at Sandia National Laboratories. A stretched."— Presentation transcript:

1 Date of download: 9/18/2016 Copyright © 2016 SPIE. All rights reserved. Schematic of the OPCPA laser system at Sandia National Laboratories. A stretched seed beam originating from a 100-fs Ti:sapphire source is amplified in three successive OPA crystals. The 80-MHz short-pulse pulse train is gated to a 10-Hz clock that triggers the pulse shaping section in the pump laser system. The setup depicts pump energies as well as the amplified seed laser energy at each stage. Figure Legend: From: Simple temporal pulse shaping using two Pockels cells Opt. Eng. 2005;44(9):094203-094203-4. doi:10.1117/1.2052709

2 Date of download: 9/18/2016 Copyright © 2016 SPIE. All rights reserved. Temporal pulse shape out of the regen at different pump energies. Figure Legend: From: Simple temporal pulse shaping using two Pockels cells Opt. Eng. 2005;44(9):094203-094203-4. doi:10.1117/1.2052709

3 Date of download: 9/18/2016 Copyright © 2016 SPIE. All rights reserved. Pulse shape distortion out of the regen (black) and rod amplifiers (red), and after second harmonic generation (green). Note: the intensities are normalized. Figure Legend: From: Simple temporal pulse shaping using two Pockels cells Opt. Eng. 2005;44(9):094203-094203-4. doi:10.1117/1.2052709

4 Date of download: 9/18/2016 Copyright © 2016 SPIE. All rights reserved. Normalized spectra of the unamplified chirped seed pulse (black) and the regen output pulses without temporal shaping (green) and with temporal shaping (red). Figure Legend: From: Simple temporal pulse shaping using two Pockels cells Opt. Eng. 2005;44(9):094203-094203-4. doi:10.1117/1.2052709

5 Date of download: 9/18/2016 Copyright © 2016 SPIE. All rights reserved. The center row shows the basic setup of the pulse shaping Pockels cell chain. High extinction polarizers are used to mitigate amplification of leakage light in the successive regenerative ring amplifier. The bottom row depicts the actual applied current waveforms with the measured resulting laser pulse shapes shown in the upper row. Figure Legend: From: Simple temporal pulse shaping using two Pockels cells Opt. Eng. 2005;44(9):094203-094203-4. doi:10.1117/1.2052709

6 Date of download: 9/18/2016 Copyright © 2016 SPIE. All rights reserved. The reverse pulse shape coming out of the regen (black). Saturation effects in the rod amplifiers cause the seed pulse to grow into a rectangular shape (red) that is then slightly narrowed through subsequent second harmonic generation (green). Note: all curves are normalized. Figure Legend: From: Simple temporal pulse shaping using two Pockels cells Opt. Eng. 2005;44(9):094203-094203-4. doi:10.1117/1.2052709


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