| 渐变折射率光波导转折点外指数衰减场的推导 |
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| 引用本文： | 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):34-637. |
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| 作者姓名： | 曹庄琪 蒋毅 沈启舜 陈英礼 |
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| 作者单位： | 上海交通大学应用物理系,区域光纤通信网及新型光通信系统国家重点实验室,上海,200030 |
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| 摘 要： | 证明了渐变折射率光源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。
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| 关 键 词： | 渐变折射率光波导 转折点 指数衰减场 |
| 收稿时间： | 1998/12/23 |
Derivation of Exponential Evanescent Field Beyond the Turning Point of Planar Optical Waveguides |
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| Cao Zhuangqi,Jiang Yi,Shen Qishun,Chen Yingli.Derivation of Exponential Evanescent Field Beyond the Turning Point of Planar Optical Waveguides[J].Acta Optica Sinica,2000,20(5):34-637. |
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| Authors: | Cao Zhuangqi Jiang Yi Shen Qishun Chen Yingli |
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| Abstract: | In the region beyond the turning point atthe 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. |
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| Keywords: | graded- index waveguides turning point exponential evanescent field |
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