Hollow-fiber compression of visible, 200 fs laser pulses to 40 fs pulse duration.
We demonstrate the use of a very simple, compact, and versatile method, based on the hollow-fiber compression technique, to shorten the temporal length of visible laser pulses of 100-300 fs to pulse durations shorter than approximately 50 fs. In particular, 200 fs, frequency-doubled, Nd:glass laser pulses (527 nm) were spectrally broadened to final bandwidths as large as 25 nm by nonlinear propagation through an Ar-filled hollow fiber. A compact, dispersive, prism-pair compressor was then used to produce as short as 40 fs, 150 microJ pulses. A very satisfactory agreement between numerical simulations and measurements is found.
Procino
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Consorzio Nazionale Interuniversatario per le Scienze Fisiche della Materia, Coherentia Consiglio Nazionale delle Ricerche, Dipartimento di Scienze Fisiche, Università Federico II di Napoli, via Cintia, 80126 Napoli, Italy.
Velotta
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R
Altucci
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C
Amoruso
S
S
Bruzzese
R
R
Wang
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X
Tosa
V
V
Sansone
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G
Vozzi
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C
Nisoli
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