Compression of 2 mJ kilohertz laser pulses to 17.5 fs by pairing double-prism compressor: analysis and performance

A general expression of dispersion for pairing double-prism compressor with arbitrary apex angle is presented and a limitation to generate negative group-delay dispersion (GDD) for broadband spectrum is obtained. By use of this compressor with spectral shaping filters and chirped mirrors, 2 mJ, 17.5 fs pulses from a compact 10-pass kilohertz Ti:sapphire amplifier system are generated.

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