Researching | Test platform design for parameter optimisation of fluorescent lidar system

Journal of Atmospheric and Environmental Optics, Volume. 20, Issue 3, 399(2025)

Test platform design for parameter optimisation of fluorescent lidar system

TANG Lei^1,2, ZHANG Yijun^1、*, BO Guangyu², YANG Zhe², ZHANG Zhanying², YU Dongsheng², WANG Rui^2,3, CHEN Haiyan², XU Chidong², and ZHU Jun⁴

Author Affiliations

¹Anhui University, Hefei 230601, China

²Department of Photoelectric Detection, Anhui Institute Of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China

³University of Science and Technology of China, Hefei 230026, China

⁴DFH Satellite Co. Ltd., Beijing 100094, China

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Fig. 1. Schematic diagram of bioaerosol lidar system

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Fig. 2. Return signals from the metre scattering channel

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Fig. 3. Actual telescope observations

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Fig. 4. Atmospheric trace gas Raman signals

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Fig. 5. Fluorescence signals at different receiver bandwidths

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Fig. 6. Detection of fluorescence signal curves of different bands by time period

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Table 1. Main parameters of the laser
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Table 1. Main parameters of the laser
Indicator name Value
Laser wavelength/nm 354.7
Pulse repetition frequency/Hz 15
Pulse energy/mJ 0.1–380
Pulse Width/ns 7.5
Dispersion angle/mrad < 0.5
Spot diameter/mm 8.16

Table 2. Raman frequency shifts of some atmospheric components and their wavelengths

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Table 2. Raman frequency shifts of some atmospheric components and their wavelengths

Atmospherie composition	Raman frequency shift/ $c m^{- 1}$	Raman wavelength/ $n m$
$S O_{2}$	1152	369.81
$C O_{2}$	1258	371.71
$O_{2}$	1555	375.41
$N_{2}$	2331	386.67
$C H_{4}$	2917	397.19
$H_{2} O ($ Ice water $)$	3150	399.32
$H_{2} O ($ Liquid water $)$	3375	402.95
$H_{2} O ($ Water vapor $)$	3657	407.57
$H_{2}$	4156	414.12

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Lei TANG, Yijun ZHANG, Guangyu BO, Zhe YANG, Zhanying ZHANG, Dongsheng YU, Rui WANG, Haiyan CHEN, Chidong XU, Jun ZHU. Test platform design for parameter optimisation of fluorescent lidar system[J]. Journal of Atmospheric and Environmental Optics, 2025, 20(3): 399

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Paper Information

Category: "Advanced technology of lidar and its application in atmospheric environment" Albun

Received: Oct. 24, 2024

Accepted: --

Published Online: Jun. 9, 2025

The Author Email: Yijun ZHANG (yijun@mail.ustc.edu.cn)

DOI:10.3969/j.issn.1673-6141.2025.03.012

Topics

laser devices and laser physics

Lasers and Laser Optics

laser manufacturing

Instrumentation, Measurement and Metrology