Journal
OPTICS LETTERS
Volume 28, Issue 5, Pages 370-372Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.28.000370
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We demonstrate a new experimental approach for flexible femtosecond pulse generation in the mid-IR by use of difference-frequency generation from two tightly synchronized Ti:sapphire lasers. The resultant mid-IR pulse train can be easily tuned, with an adjustable repetition frequency up to 100 MHz, a pulse energy of similar to1.5 X 10(-13) J, and an intensity noise similar to that of the Ti:sapphire. Rapid switching of the mid-IR wavelength and programmable amplitude modulation are achieved by precision setting of the time delay between two original pulses. (C) 2003 Optical Society of America.
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