提出一种分析非平行波导间耦合的简明方法耦合系数推广法。
A concise analytical method (extending coefficient) of coupling between two nonparallel waveguides is reported in this paper.
此激光平行光管具有以前平行光管的优点，且可以与数字相移干涉仪对接，直接进行波前误差的高精度测量。
The laser collimator not only has the advantages of existing ones, but also can be used to measure wavefront error with high accuracy interferometer.
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