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利用ＮｄＹＡＧ激光增益介质的法拉第效应，以及光束在非平面环形谐振腔中传播产生的偏振面旋转，使激光二极管泵浦的环形ＮｄＹＡＧ激光器单向运转，获得单频激光输出。最大单纵模激光（１．０６４μｍ）输出为３６５ｍＷ，功率波动小于２％，短期频率漂移小于４５ＭＨｚ。并利用内腔倍频技术得到单频绿光输出，最大单纵模绿光（５３２ｎｍ）输出为７５ｍＷ，功率波动小于４％。
The Faraday effect of the NdYAG laser gain medium and the rotation of the polarization plane caused by the propagation of the beam in the non-planar ring resonator are utilized to make the laser diode-pumped ring-shaped NdYAG laser operate in one direction to obtain single-frequency laser output. Maximum single longitudinal mode laser (1.064μm) output of 365mW, power fluctuations of less than 2%, short-term frequency drift of less than 45MHz. The single-frequency green light output is obtained by the double-frequency cavity technique. The output of the single-longitudinal-mode green light (532nm) is 75mW and the power fluctuation is less than 4%.