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Dispersion control for temporal contrast optimization
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DOI：10.1364/OE.26.025003.png)
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Abstract
En 中文
We investigate the temporal contrast of the Light Wave Synthesizer 20 (LWS-20): a powerful, few-cycle source based on the optical parametric synthesizer principle. Saturation effects in the RF amplifier driving the acousto-optic programmable dispersive filter (AOPDF) were found to degrade the coherent contrast for non-monotonic group delay corrections. We subsequently present a new dispersion scheme and design a novel transmission grism-based stretcher optimized for LWS-20. The resulting temporal contrast of the amplified, compressed output pulses is improved by 2-4 orders of magnitude compared to the former design. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
Keywords:
CHIRPED-PULSE-AMPLIFICATION
LASER-PULSES
COMPRESSION
GENERATION
AMPLIFIER
FILTER
REFLECTION
GRISMS
OPTICS
PLASMA