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Soletop's Lidar products benefit from space grade technology. Products are reliable, easy to use, and budget friendly.

  • MODEL SRL 300 Raman Lidar

The SRL300 Raman Lidar is carefully designed to study particles and aerosol. Optical and physical properties of a particle can be measured and classified. The typical application is in meteorology, measuring cloud height and distribution.


Lidar is the optical equivalent of radar(LIDAR is an acronym of Light Detection And Ranging) an active remote sensing technique.

SRL-300 LIDAR is based on the particles of elastic and inelastic (Raman) backscatter. A pulsed laser beam is emitted into the atmosphere. The light is scattered by particles or molecular in the atmosphere. Some of the light reaches the receiving telescope where it is amplified and digitized. Interactions with nitrogen, water vapor(Raman scattering) and atmospheric gases, aerosol(Mie/Rayleigh scattering) can provide a wealth of information about the atmosphere.

SRL-300 LIDAR offers a well-established method of determining the vertical profile of the aerosol extinction coefficient independently from the aerosol backscatter coefficient.
SRL-300 LIDAR is suitable for multiple atmospheric monitoring applications, including advanced cloud analysis. We provide complete lidar solutions, including all hardware and software necessary to operate the system and analyses the data.

Transmitting System 1Set
Receiving System 1Set
Data acquisition System 1Set
Data acquisition Software 1Set


  • Cloud layer, Dust layer
  • PBL(Planetary boundary layer)
  • Backscatter and extinction coefficient
  • Aerosol optical depth(AOD)
  • Aerosol type determination(dust, cloud, aerosol….)
  • Aerosol microphysical properties(volume and surface concentration….)
  • Depolarization ratio
  • Lidar ratio
  • Water vapor mixing ratio
  • Cloud & Aerosol classification

  • * : Option
  • Visibility
  • Color ratio*
  • Angstrom exponent*
  • SSA(Single scattering albedo)*
  • Etc…


Transmitter Laser source Nd:YAG
Wavelength 355 nm, 532* nm
Pulse duration 6 ns
Repetition rate 10 Hz
Beam divergence < 0.5 mrad after 5X beam expansion
Receiver Telescope Cassegrain (300, 400* mm)
Field of view 0.5~2 mrad
Focal length 3,000 mm
20 km / 15 km @ Elastic signal (night/day)
15 km / 4 km @ Raman signal (night/day)
Vertical range resolution 7.5, 15, 30 m (variable)
Detector Detection channels P∙S-polarization signals
(355, 532* nm)
N2 Raman signals(387, 607* nm)
Water vapor Raman signals
(408, 660* nm)
Liquid water Raman signals(404* nm)
Elastic channels 355 nm, 532* nm
Raman channel Fast photon counting system(350 MHz)
for Raman channels
(386, 408, 404*, 607*, 660* nm)
Software Automatic instrument control
Automatic data processing
Real time visualization
* : Option

  • MODEL SC Ceilometer

he MODEL SC Ceiiometer is designed to measure the profile of the cloud layer. A carefully chosen laser beam is emitted to the sky.

Ceilometer SCL-100

  • Excellent coverage up to 15Km
  • Modular design for simple installation and easy maintenance
  • Stable operation under extreme environment
  • Automated, Real time measurement with easy to use GUI
  • Measure multiple layers of clouds
  • Use discrete microchip laser for minimum beam divergence


Measurement range(Max) 15km (49,300 ft)
Resolution > 7.5m (25 ft)
Measurement cycle 10 ~ 120 sec (adjustable)
Measurement accuracy ± 5m or ±1%
Transmitter Microchip laser, 1064 nm (Eye safety)
Receiver (Detector) InGaAs APD


  • Cloud status information
  • Cloud backscatter profile
  • Amount of clouds
  • Planetary boundary layer (PBL)

  • MODEL SDIAL Differential Absorption Lidar

SDIAL is a type of Lindar profiler that takes measurements based on the difference of absorption and scattering of two laser beams. It can measure the profile and distribution of multiple pollution elements such as SO2, NO2, O3, CH4, CO2 etc. Soletop offers a powerful analysis software package to measure, archive, and visualize these critical parameters.