| Issue |
EPJ Web Conf.
Volume 362, 2026
31st International Laser Radar Conference (ILRC 31) Held Together with the 22nd Coherent Laser Radar Conference (CLRC 22)
|
|
|---|---|---|
| Article Number | 01009 | |
| Number of page(s) | 4 | |
| Section | Joint CLRC/ILRC Session: New Lidar Technologies and Methods | |
| DOI | https://doi.org/10.1051/epjconf/202636201009 | |
| Published online | 09 April 2026 | |
https://doi.org/10.1051/epjconf/202636201009
Novel emitter for a compact general-purpose Doppler lidar based on diode-pumped Alexandrite
(a) Fraunhofer Institute for Laser Technology – ILT, Aachen, Germany
(b) Leibniz Institute of Atmospheric Physics – IAP, Kühlungsborn, Germany Lead Author e-mail address: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 9 April 2026
Abstract
We present an overview of a narrow-bandwidth, compact and efficient emitter for a general-purpose atmospheric Doppler lidar based on diode-pumped Alexandrite. The laser operates in single-longitudinal-mode with a very narrow linewidth of 3 MHz at the resonance line of potassium (770 nm) and with an average output power of 2.4 W. The high electro-optical efficiency >2 %, the excellent beam quality of M2 = 1.1, the repetition rate of 750 Hz and the pulse energy of 3.2 mJ are tailored to the autonomous long-term operation of the lidar system. Four demonstrator lasers were built and integrated into mobile lidar systems and measurements were conducted during several field campaigns from summer 2022 to spring 2023.
The transfer of the technology to the deployment in an iron lidar operating in the UV is demonstrated in the laboratory by intra-cavity frequency conversion. Remarkably, all parameters of the IR laser, especially the efficiency, are almost preserved.
© The Authors, published by EDP Sciences, 2026
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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