Portable aerosol lidar using fiber-coupled diode laser

I. H. Hwang

doi:10.1117/12.501650

23 December 2003 Portable aerosol lidar using fiber-coupled diode laser

I. H. Hwang

Proceedings Volume 5154, Lidar Remote Sensing for Environmental Monitoring IV; (2003) https://doi.org/10.1117/12.501650
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

An inexpensive aerosol lidar is proposped by combining inexpensive fiber-coupled diode laser and photon counting detection technology for air quality monitoring in metropolitan area. A prototype lidar system was built with a 100 μm fiber-coupled diode laser as the laser source and a 200 mm Schmidt-Cassegrain telescope as the receiver. The transmitted beam diveregence from a 50 mm diameter Galilean transmitter was 433 μradian and the receiver field of view was 133 μradian in full angle. With a repetition rate of 5 kHz of 100 ns pulse, a signal-to-noise of 2 was obtained up to 2 km in a clear day nighttime at the averaging time of 60 s.

Citation Download Citation

I. H. Hwang "Portable aerosol lidar using fiber-coupled diode laser", Proc. SPIE 5154, Lidar Remote Sensing for Environmental Monitoring IV, (23 December 2003); https://doi.org/10.1117/12.501650

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KEYWORDS

LIDAR

Semiconductor lasers

Fiber lasers

Signal to noise ratio

Clouds

Aerosols

Atmospheric modeling

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