Speckle effects on laser wavelength measurements with a Fizeau wavemeter
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Prasad, Coorg R.↗
Engineering topics
Korb, C. Laurence
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A lidar system for measuring atmospheric pressure and temperature profiles
The design and operation of a differential absorption lidar system capable of remotely measuring the vertical structure of tropospheric pressure and temperature are described. The measurements are based on the absorption by atmospheric oxygen of the spectrally narrowband output of two pulsed alexandrite lasers. Detailed laser output spectral characteristics, which are critical to successful lidar measurements, are presented. Spectral linewidths of 0.026 and 0.018 per cm for the lasers were measured with over 99.99 percent of the energy contained in three longitudinal modes.
Schwemmer, Geary K.↗