光学学报, 2000, 20 (5): 634, 网络出版: 2006-08-09
渐变折射率光波导转折点外指数衰减场的推导
Derivation of Exponential Evanescent Field Beyond the Turning Point of Planar Optical Waveguides
摘要
证明了渐变折射率光波导转折点外的模场呈简单的指数衰减形式,指数衰减系数可用一恒定的等效折射率定义。
Abstract
In the region beyond the turning point at the substrate side of graded-index planar optical waveguides,it is shown that the field solution is a rigorous exponential evanescent function.The attenuated coefficient can be characterized by an equivalent refractive index.
曹庄琪, 蒋毅, 沈启舜, 陈英礼. 渐变折射率光波导转折点外指数衰减场的推导[J]. 光学学报, 2000, 20(5): 634. 曹庄琪, 蒋毅, 沈启舜, 陈英礼. Derivation of Exponential Evanescent Field Beyond the Turning Point of Planar Optical Waveguides[J]. Acta Optica Sinica, 2000, 20(5): 634.
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