Dual-Wavelength Mid-Infrared Laser for Long-Range Gas Detection(Invited)
In order to achieve the purpose of long-range gas detection,a mid-infrared laser with dual wavelength output is developed;this system is based on an optical parametric oscillator composed of superlattice materials.The optical parametric oscillator realizes a mid-infrared pulsed laser output of nanosecond order with a 500 Hz repetition rate and a single pulse energy that exceeds 1 mJ through seed injection,and effectively aligns the NO,NO2,and SO2 absorption peaks in the 2.6‒4.0 μm range.The laser performance is validated in a remote gas detection experiment based on a gas dynamic emission experiment.
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