Design validation of an eye-safe scanning aerosol lidar with the Center for Lidar and Atmospheric Sciences Students (CLASS) at Hampton University
PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE)(2002)
摘要
ITT's Advanced Engineering & Sciences Division and the Hampton University Center for Lidar and Atmospheric Sciences Students (CLASS) team have worked closely to design, fabricate and test an eye-safe, scanning aerosol-lidar system that can be safely deployed and used by students from a variety of disciplines. CLASS is a 5-year undergraduate-research training program funded by NASA to provide hands-on atmospheric-science and lidar-technology education. The system is based on a 1.5 micron, 125 mJ, 20 Hz eye-safe optical parametric oscillator (OPO) and will be used by the HU researchers and students to evaluate the biological impact of aerosols, clouds, and pollution in the lower atmosphere. Over the past three years, ITT has hosted students from CLASS to work with our engineers on a variety of systems issues. The system design tasks we addressed include the development of software to calculate eye-safety levels and to model lidar performance, implementation of eye-safety features in the lidar transmitter, optimization of the receiver using optical ray tracing software, evaluation of detectors and amplifiers in the near IR, tests of OPO and receiver technology, development of hardware and software for laser and scanner control and video display of the scan region. This paper presents the cumulative design and validation of this instrument and its initial data sets.
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关键词
remote sensing,eyesafe,lidar,OPO,tropospheric aerosols
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