"Sub-20 fs visible pulses with 750 nJ energy from a 100-kHz NOPA"J. Piel, E. Riedle, L. Gundlach, R. Ernstorfer, and R. Eichberger
Opt. Lett. 31, 1289 - 1291 (2006)
We demonstrate the operation of a 100-kHz noncollinearly phase matched optical parametric amplifier that is pumped by just a few µJ of 800 nm pulses with 50 fs duration. The device delivers sub-20 fs pulses tunable from 460 nm to beyond 1 µm and pulse energies up to 750 nJ when pumped with 7 µJ. The design of the single stage amplifier has been carefully optimized and the design considerations are discussed.
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