Small-sized Er,Yb: glass planar waveguide laser amplifier pumped by a laser diode bar

We developed a small-sized Er,Yb:glass planar waveguide laser amplifier pumped by a laser diode bar with the butt joint configuration, toward the application of the wind sensing coherent lidar (light detection and ranging). We demonstrate the signal amplification operation and the output power of 3.2W in continuous-wave mode.