Abstract
We report on a nanosecond master oscillator power amplifier optical parametric source for differential-absorption lidar. The master oscillator consists of an entangled-cavity nanosecond optical parametric oscillator based on a type II periodically poled lithium niobate crystal that provides highly stable single-longitudinal-mode radiation. The signal emission is amplified by a multistage parametric amplifier to generate up to in a nearly diffraction-limited beam with an quality factor of while maintaining single-longitudinal-mode emission with a frequency stability better than rms. This approach can be readily applied to the detection of various greenhouse gases.
© 2009 Optical Society of America
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