1572-nm High-Energy Single-Frequency PM Fiber Laser for CO2 Coherent Remote Sensing

We report a high-energy narrow-linewidth SBS-free high-efficiency polarization-maintaining fiber laser based on MOPA at 1572 nm for CO2 coherent remote sensing. The Lorentz linewidth of the seed laser is 150 μJ, with tunable repetition rate of 1 k~1 MHz and tunable pulse width of 100~500 ns.