为了提高局部观察点的辐照功率密度，在辐照喇叭口采用了低损耗聚四氟乙烯微波透镜以聚焦微波能量。
In order to increase the irradiation power density of local view point, the low loss Teflon microwave lens focusing energy of microwave is used near the irradiating horn.
本文分析了光纤无源器件中使用的自聚焦透镜产生耦合损耗的原因，并提出了解决办法。
This paper analyses the causes of coupling loss produced by self-focusing lens used in passive fiber components, solutions are proposed to such causes.
提高端面抽运功率占有率，可在一定程度上减小热透镜效应对振荡光束尺寸和衍射损耗的影响。
The influences of the thermal lens effect on the oscillation beam radius and diffraction loss can be reduced by increasing the proportion of the end-pumping power.
提高端面抽运功率占有率，可在一定程度上减小热透镜效应对振荡光束尺寸和衍射损耗的影响。
The influences of the thermal lens effect on the oscillation beam radius and diffraction loss can be reduced by increasing the proportion of the end-pumping power.
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