The far-field intensities and divergence angles of combined beam of two copper vapor lasers with UR90 resonators coupled at small magnification (M=1.21) were measured and analyzed experimentally.

• 并利用铜蒸气激光器实现了两台低放大倍率(M=1.；21)UR90腔的相干并束输出，对输出光束的远场方向性进行了测量分析。