Abstract.
Broadly tunable difference-frequency generation (DFG) in AgGaS2 was achieved by mixing dual-wavelength oscillating pulses from an electronically tuned Ti:sapphire laser with a two-frequency-driven acousto-optic device. Continuous tuning from 6.5 to 8.5 μm was achieved by simultaneous dual-wavelength-tuned DFG without crystal rotation. In the dual-pulse oscillation, the shorter and longer wavelength pulses were tuned from 700 to 775 nm and from 763 to 880 nm, respectively, while keeping the phase-matching relationship for DFG. When crystal rotation was adopted, however, the tunable output range was extended from 5.3 to 12 μm by tuning the longer wavelength pump pulse, while the shorter wavelength pulse was fixed.
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Received: 18 November 1998 / Revised version: 5 February 1999 / Published online: 26 May 1999
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Saito, N., Akagawa, K., Wada, S. et al. Difference-frequency generation by mixing dual-wavelength pulses emitting from an electronically tuned Ti:sapphire laser . Appl Phys B 69, 93–97 (1999). https://doi.org/10.1007/s003400050777
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DOI: https://doi.org/10.1007/s003400050777