Abstract
Tunable, narrow-bandwidth , radiation was produced by frequency quadrupling the output of a high-power, pulsed GaAlAs tapered amplifier seeded by an external-cavity diode laser. Pulsing the amplifier increased the conversion efficiency by 2 orders of magnitude with respect to cw operation. Detection of nitric oxide and sulfur dioxide by high-resolution absorption spectroscopy was demonstrated.
© 1997 Optical Society of America
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