建模阶段 stages of modeling ; Process Design&Definition
两阶级模型 the model of two classes
单模阶变折射率光纤 step index fiber single mode
耦合包层模阶次 coupled cladding mode order
模型降阶 Modred ; [自] model reduction ; Model order reduction
降阶模型 [数] reduced model ; Reduced Order Model ; rom
频域模型降阶法 frequency domain model reduction method
高阶模 HOM ; higher modes ; high order mode
进阶模式 Advanced Mode ; advanced view
离散模型降阶 Dmodred
结果表明，作为调制通道的导模阶数越低，调制效率越高。
Results show that the lower guide mode acting as the modulation channel is, the larger modulation index can be obtained.
通过实验分析，证实了对场分布影响较大的第一阶谐振频率是TE101模，TE101模的谐振频率是TEM传输室的上限使用频率。
Through the experiment, it was validated that the first frequency that have great effect on the field distribution is TE101, and the resonant frequency of TE101 is the limited frequency of TEM cell.
增益材料放置的对称性导致奇数阶纵模的损耗，从而增加了微激光器的调谐范围。
Certain symmetry in the allocation of gain material leads to depletion of odd longitudinal modes that, in turn, increases the tunability range of the microlaser.
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