Abacus Laser provides lidar modules for remote wind measuring.


HSR stands for High Spectral Resolution. Together with our LiTra-Technology, the LiTra HSR module enables the detection and differentiation between Mie and Rayleigh scattering. Our modules contain the complete optical system, i.e., a narrowband reference laser, a pulsed single-frequency laser, the telescope and detection by optical superposition (heterodyne or coherent detection).


Advantages of the LiTra HSR

  • Coherent High Spectral Resolution Doppler lidar
  • Possible wavelengths: 532 nm and/or 1064 nm
  • Combined detection of Mie and Rayleigh scattering
  • Available with pulse energy from mJ level to 100s of mJ


Data sheet

The corresponding data sheet for the LiTra HSR can be found here.


Example measurements

Example of vertical measurements performed with the TROPOS ProDoLi System containing a LiTra HSR with 2 mJ pulse energy at 532 nm.

Vertical wind measurement obtained with the LiTra HSR – Courtesy of Felix Fritzsch (TROPOS), published in F. Fritzsch et al.: Setup and First Measurements of a Novel Coherent Heterodyne Green Doppler Lidar System ‐ Achievements and Challenges, European Lidar Conference, Cluj-Napoca, 13 September 2023

This project is part of ACTRIS-D, which is funded by the Federal Ministry of Education and Research of Germany under the funding code 01LK2001A.