We present data on a novel short-pulse eyesafe lidar transceiver for utilization in high-resolution heterodyne detection Doppler wind sensing. Operating at 20 Hz, the transmitter is a 1.3 micrometers pumped solid state Raman laser running at 1.556 micrometers , and is injection seeded using a direct diode master oscillator. This system is coupled to a hemispherical scanner to measure atmospheric winds, with the data validated against a commercially-available 2 micrometers lidar system. We typically measured atmospheric returns from greater than 2 km, with range resolution less than 6 m.
A brief report on an ongoing study concerned with the responses of acousto-optic modulators (AOMs) and deflectors (AODs) exposed to linearly accelerated electrons, gamma rays, and X rays is presented. The diffracted spatial intensities of PbMoO4, TeO2, and InP devices were observed to undergo displacements and attenuation. Discussions of radiation- induced temperature gradients and color center formation believed to be responsible for these effects are included.
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