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Conferences > OFS > 2018 > WC > WC5

Photo-acoustic distance sensor based on high-speed nano-second pulsed fiber laser

Sang Min Park, Gyeong Hun Kim, and Chang-Seok Kim

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Abstract

We present a fiber photoacoustic distance sensor using a high-speed nano-second pulsed fiber laser. This laser has a high-repetition rate of 50 kHz and a high pulse energy more than 500 nJ to interrogate the distance between the sample and the detector of photo-acoustic (PA) signal. The linear slope of the distance under test can be measured for the time interval between the laser pulse and the PA signal.

© 2018 The Author(s)

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