Seeded femtosecond optical parametric amplification in the mid-infrared spectral region above 3 µm
- 20 February 1997
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 36 (6) , 1164-1172
- https://doi.org/10.1364/ao.36.001164
Abstract
Femtosecond optical parametric amplification that results in microjoule mid-infrared pulses at wavelengths exceeding 3 µm is demonstrated. Narrow-band quasi-cw seeding at the signal wavelength is applied to ensure the generation of nearly transform-limited femtosecond pulses at the idler wavelength. The broad bandwidth of the parametric amplification provided by pumping with femtosecond pulses from a Ti:sapphire regenerative amplifier at high intensity results in idler pulse durations shorter than the pump pulse length. The potentials of three nonlinear optical crystals that belong to the potassium titanyl phosphate family are comparatively studied. At 1-kHz repetition rate our all-solid-state system produces highly synchronized ∼100-fs pulses in the spectral range between 3 and 4 µm.Keywords
This publication has 29 references indexed in Scilit:
- Mid-infrared pulse generation using a sub-picosecond OPOApplied Physics B Laser and Optics, 1995
- Mid infra-red femtosecond pulse generation by wave-mixing: numerical simulation and experimentOptics Communications, 1995
- Solid-state laser system for the generation of midinfrared femtosecond pulses tunable from 33 to 10 μmOptics Letters, 1994
- Generation of high-repetition rate femtosecond pulses tunable in the mid-infraredOptics Communications, 1994
- Generation of 200 femtosecond pulses tunable between 2.5 and 5.5 µmApplied Physics B Laser and Optics, 1994
- Generation of tunable subpicosecond light pulses in the midinfrared between 45 and 115 μmOptics Letters, 1993
- Two-color synchronously mode-locked femtosecond Ti:sapphire laserOptics Letters, 1993
- Femtosecond pulses in the mid-infrared generated by downconversion of a traveling-wave dye laserOptics Letters, 1991
- Tunable femtosecond radiation in the mid-infrared for time-resolved absorption in semiconductorsApplied Optics, 1988
- Tunable subpicosecond infrared pulse generation to 4 μmOptics Letters, 1987