利用迈氏腔技术,进行了光子晶体光纤(PCF)激光器相干合成的实验研究,实现了两光子晶体光纤激光器的相位锁定,获得了功率为47 W的相干输出.解释了在迈氏腔的两个输出光路上分别实现相干相长和相干相消的物理机理.实验结果表明,合成激光光谱较单台PCF激光器的激光光谱有显著的改善,波长带宽小于5 nm. The experimental study on the photonic crystal fiber (PCF) laser coherent synthesis was carried out using the Myeik-cavity technique and the phase locking of the two photonic crystal fiber lasers was achieved. The coherent output with power of 47 W was obtained. The physical mechanism of the coherent phase and the coherent phase cancelation of the output light path are achieved respectively.The experimental results show that the laser spectrum of the synthesized laser has a significant improvement over the single PCF laser with a wavelength bandwidth of less than 5 nm.