Few-optical-cycle pulses in the near-infrared from a noncollinear optical parametric amplifier.
We extend the concept of broadband phase matching in a noncollinear optical parametric amplifier (NOPA) to the near-IR. In an 800 nm pumped NOPA using periodically poled stoichiometric lithium tantalate, we amplify a spectrum spanning the 1.1-1.7 microm range and corresponding to two optical cycles of the carrier wavelength. A limited portion of the spectrum is compressed by a prism pair down to 16 fs.
Cirmi
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National Laboratory for Ultrafast and Ultraintense Optical Science-INFM-CNR, Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milan, Italy.
Brida
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D
Manzoni
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Marangoni
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M
De Silvestri
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S
Cerullo
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