RESUMEN
This publisher's note contains a correction to Opt. Lett.49, 969 (2024)10.1364/OL.510598.
RESUMEN
We present a hybrid fiber/bulk laser source designed for CO2 and wind monitoring using differential absorption LIDAR (DIAL) and coherent detection at 2.05â µm. This source features a master oscillator power amplifier (MOPA) architecture made of four fiber stages and one single-pass, end-pumped, bulk amplifier. This Letter focuses on the single-pass bulk amplifier performance and on the hybrid architecture benefits for DIAL and coherent detection. The bulk material is a holmium-doped YLF crystal that provides high efficiency amplification at 2.05â µm. This laser offers an energy breakthrough as compared to the classical stimulated Brillouin scattering (SBS) limit encountered in a fiber laser without compromising robustness, thanks to very few free-space optical elements and a small optical path. It delivers pulse energy and repetition frequency of 9.0 or 1.2â mJ/20â kHz with 200â ns quasi Fourier-transform limited pulses.