调频连续波（FM-CW）激光雷达是一种新体制光学非相干雷达，如何在发射源部分获得宽带调制的大功率连续激光发射是一个关键技术。对CQF935/5624型和EM650型激光器两种“种子光”光源的调制性能进行了研究。对相关器件的性能进行了测试，分别对二者的调制性能进行了实验研究，讨论了调制非线性因素对调制性能的影响。实验结果表明，二者都具有良好的调制性能，有望在将来获得进一步的应用。EM650型光源因其集成化的特点更具优势。

Frequency-modulation continuous-wave (FM-CW) ladar is a new kind optical incoherent ladar. In its emission source, how to get a broadband modulated high-power continuous laser emission is the key technology. Two kinds of “seed laser” source, CQF935/5624 and EM650, are studied respectively. The performance of the related devices is tested and the results are given. The modulation performance is researched by conducting a series of experiments. The influence of the nonlinear factor on the modulation performance is discussed. The experimental results indicate that both the two “seed laser” sources have a good modulation performance, which can lead to a further application in the future. EM650 has more advantages for its integration.