We demonstrate a diode-pumped Nd:LaMgAl₁₁O₁₉ laser operating at 1.38 μm band and measure for continuous-wave (CW) laser operation the power from the output couplers (OCs) of different transmittance T. With an absorbed pump power of 6.2 W, we obtain a maximum output power of 570 mW for the OC with T = 4%. For Q-switched operation with this OC, we investigate and analyze laser performance characteristics, including the average output power, optical spectra, frequency repetition rate, pulse width, single pulse energy, and pulse peak power. With increasing absorbed pump power, the average output power, frequency repetition rate, single pulse energy, and pulse peak power gradually increase, whereas the pulse width gradually decreases until finally becomes stable. Under an absorbed pump power of 4.3 W, a maximum average output power of 200 mW and a shortest pulse width of 5.1 μs are achieved. For both CW and Q-switched operations, the laser oscillates simultaneously at two wavelengths of about 1376 and 1378 nm.

我们展示了一个二极管泵浦Nd：LaMgAl ₁₁ ö ₁₉在1.38微米波段和测量激光操作为连续波（CW）激光运行的功率从所述输出耦合器的不同透射率（OCS）Ť。当吸收的泵浦功率为6.2 W时，对于T = 4％的OC，我们获得的最大输出功率为570 mW 。对于Q通过使用此OC进行开关操作，我们研究并分析了激光器的性能特征，包括平均输出功率，光谱，频率重复率，脉冲宽度，单脉冲能量和脉冲峰值功率。随着吸收泵浦功率的增加，平均输出功率，频率重复率，单脉冲能量和脉冲峰值功率逐渐增加，而脉冲宽度逐渐减小直到最终变得稳定。在吸收的4.3 W泵浦功率下，最大平均输出功率为200 mW，最短脉冲宽度为5.1μs。对于CW和Q切换操作，激光同时以大约137​​6和1378 nm的两个波长振荡。