The former has compact structure;,little cavity loss, higher coupling efficiency, and higher superposition efficiency.
四镜腔结构紧凑，腔内损耗小，容易实现泵浦光与基模的良好重叠，最大限度的利用泵浦光，谐振腔耦合效率较高。
参考来源 - 瓦级连续双波长输出Nd：YAP/KTP稳频激光器实验研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The result shows that if the gain is larger than the cavity loss, the zero solution is unstable;
结果表明：如果增益大于激光腔损耗，则零解是不稳定的；
The influence of duty ratios on the interference patterns in the far field is studied. Main factors that affect the cavity loss are analyzed.
研究了光束占空比对远场光斑的影响，分析了影响腔内损耗的主要因素。
Insulate your home. Cavity wall insulation can cut heat loss through the wall by up to 60 percent.
房屋隔热可以利用空心墙来减少热能损耗，降幅高达60%。
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