All-solid-state generation of 100-kHz tunable mid-infrared 50-fs pulses in type I and type II AgGaS_2

Autor: Golubovic, B., Reed, M. K.
Zdroj: Optics Letters; November 1998, Vol. 23 Issue: 22 p1760-1762, 3p
Abstrakt: We report the operation of an all-solid-state system for the generation of tunable mid-infrared sub-50-fs pulses. A Ti:sapphire regenerative amplifier, pumped by 10 W of power from 532-nm, diode-pumped, frequency-doubled Nd:YVO_4 lasers, produced 4?µJ energy, sub-50-fs pulses at 800 nm with a 100-kHz repetition rate. This output was used to drive a ??BaB_2O_4 optical parametric amplifier followed by a difference-frequency generator based on a AgGaS_2 crystal. Continuous tuning of ultrafast pulses from 2.4 µm to longer than 12 µm was obtained. A performance comparison of difference-frequency generation in type I and type II phase-matched AgGaS_2 is reported.
Databáze: Supplemental Index