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Proceedings Paper

Development of a compact lidar system using OPO
Author(s): Yasuhiro Okada; Masafumi Yorozu; Akira Endo
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Paper Abstract

A compact differential absorption LIDAR (DIAL) system was developed for monitoring spatial distribution of NO2 concentration in relatively short range. The DIAL system was composed of a LD pumped Nd:YLF laser and an optical parametric oscillator (OPO) as light source. A telescope, filters, a photo tube and photomultiplier were used to detect backscattered signals. A digital oscilloscope was used as a data accumulator. A personal computer and a pulse generator were used to control the DIAL system. The output energy of OPO was 40 (mu) J and its bandwidth was 5 cm-1. Using this compact DIAL system, the spatial distribution of NO2 concentration around a hollow tube connected to a 2% NO2 gas bottle was measured. The maximum concentration value was 0.6% and the NO2 concentration peak placed at 30 m away from DIAL system. This result was in good agreement with the geometrical set up of the hollow tube.

Paper Details

Date Published: 26 May 1997
PDF: 8 pages
Proc. SPIE 3104, Lidar Atmospheric Monitoring, (26 May 1997); doi: 10.1117/12.275155
Show Author Affiliations
Yasuhiro Okada, Sumitomo Heavy Industries, Ltd. (Japan)
Masafumi Yorozu, Sumitomo Heavy Industries, Ltd. (Japan)
Akira Endo, Sumitomo Heavy Industries, Ltd. (Japan)


Published in SPIE Proceedings Vol. 3104:
Lidar Atmospheric Monitoring

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