二色镜 meaning in English

dichroic mirror
dichroiscope
dichroscope

Using large - area - mode yb3 + - doped photonics fiber , we realized laser operation and analyzed its output properties . the laser is cladding pumped and the output power is 2 . 6w , with wavelength of 1074 . 5 nm and slope - efficiency 54 %
在选用二色镜作为激光器后腔镜的实验中,在泵浦功率7 . 8w时获得了2 . 6w激光输出,波长为1074 . 5nm ,斜率效率为54 % 。