Generation of high-energy self-phase-stabilized pulses by difference-frequency generation followed by optical parametric amplification.
We produce ultrabroadband self-phase-stabilized near-IR pulses by a novel approach where a seed pulse, obtained by difference-frequency generation of a hollow-fiber broadened supercontinuum, is amplified by a two-stage optical parametric amplifier. Energies up to 20 microJ with a pulse spectrum extending from 1.2 to 1.6 microm are demonstrated, and a route for substantial energy scaling is indicated.
Manzoni
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C
National Laboratory for Ultrafast and Ultraintense Optical Science-INFM, Istituto di Fotonica e Nanotecnologie, Consiglio Nazionale delle Ricerche, Dipartimento di Fisica, Politecnico di Milano, 20133 Milano, Italy. giulio.cerullo@fisi.polimi.it
Vozzi
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C
Benedetti
E
E
Sansone
G
G
Stagira
S
S
Svelto
O
O
De Silvestri
S
S
Nisoli
M
M
Cerullo
G
G