| 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 | 17001 | |
| Number of page(s) | 5 | |
| Section | CLRC Technology Components | |
| DOI | https://doi.org/10.1051/epjconf/202636217001 | |
| Published online | 09 April 2026 | |
https://doi.org/10.1051/epjconf/202636217001
Compact High-Power 2-micron Transmitter for Coherent Lidar Applications
Beyond Photonics 6205 Lookout Rd, Ste B, Boulder, CO 80301 (USA) This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 9 April 2026
Abstract
A novel Ho:LuLF transmitter operating in an atmospheric transmission window at 2052.92 nm with significant advantages over previous transmitters is described. The transmitter utilizes a low-gain, very-compact oscillator to create long-duration pulses needed for atmospheric wind measurements followed by a very-high-gain amplifier. Both the oscillator and the amplifier are in-band pumped near 1.94 µm using a single Tm:fiber laser. The transmitter (oscillator + amplifier) produces 60 mJ 420 ns pulses at 400 Hz and has a prime power efficiency of 7.4%. The pulses are near-transform- and near-diffraction-limited and stabilize in <15 s after pump power is applied. The entire transmitter optical head, less the external fiber-coupled Tm:fiber pump laser, is very compact, and is currently being ruggedly packaged into an ~ 1.2 liter volume. This rugged and compact transmitter when coupled with an ~ 1-meter-diameter telescope is suitable for wind measurements from space.
© The Authors, published by EDP Sciences, 2026
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