空间部分相干光束与平面波导的耦合
Coupling of spatially partially coherent beams into planar waveguides.
作者信息
Partanen Henri, Tervo Jani, Turunen Jari
出版信息
Opt Express. 2015 Mar 23;23(6):7879-93. doi: 10.1364/OE.23.007879.
PMID:25837126
Abstract
The second-order coherence theory of partially spatially coherent light and the overlap integral method are applied to study the end-coupling of stationary multimode light beams into planar waveguides. A method is presented for the determination of the cross-spectral density function of the guided field. Examples are given on the effects of spatial coherence, lateral shift, angular tilt, and defocusing of the incident beam on the coupling efficiency, spatial coherence, and propagation characteristics of the guided field.
摘要
将部分空间相干光的二阶相干理论和重叠积分方法应用于研究稳态多模光束与平面波导的端面耦合。提出了一种确定导波场交叉谱密度函数的方法。给出了入射光束的空间相干性、横向位移、角倾斜和离焦对耦合效率、空间相干性和导波场传播特性影响的示例。
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