| 平面波导TE0模的远场衍射特性分析 |
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| 引用本文： | 上官成木生 郭福源 卢勇. 平面波导TE0模的远场衍射特性分析[J]. 光电子．激光, 2004, 15(3): 299-302 |
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| 作者姓名： | 上官成木生 郭福源 卢勇 |
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| 作者单位： | 福建师范大学物理与光电信息科技学院激光研究所,福建,福州,350007;福建师范大学物理与光电信息科技学院激光研究所,福建,福州,350007;浙江大学光电系现代光学仪器国家重点实验室,浙江,杭州,310027 |
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| 基金项目： | 浙江省自然科学基金资助项目(601133) |
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| 摘 要： | 由瑞利-索末菲标量衍射积分公式出发，推导出中央亮条纹强度半最大值处的空间频率满足的方程；阐明了平面波导TE0模远射远场的中央亮条纹强度半最大值空间频率宽度随波导归一化频率增大而增大；给出中央亮条纹强度半最大值全角宽度与工作波长、波导宽度和波导相对折射率关系曲线。
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| 关 键 词： | 平面光波导 远场衍射 中央亮条纹 空间频谱 半最大值全宽度(FWHM) 半最大值全角宽度 |
| 文章编号： | 1005-0086(2004)03-0299-04 |
Characteristic of Far Field Diffraction of TE0 Mode in a Planar Waveguide |
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| SHANGGUAN Chengmusheng. Characteristic of Far Field Diffraction of TE0 Mode in a Planar Waveguide[J]. Journal of Optoelectronics·laser, 2004, 15(3): 299-302 |
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| Authors: | SHANGGUAN Chengmusheng |
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| Affiliation: | SHANGGUAN Chengmusheng~ |
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| Abstract: | According to the Rayleigh-Sommerfeld diffraction scalar integral formula,the equation of spatial frequency at half maximum intensity of central bright fringe of far field diffraction of planar waveguide in TE_0 mode was educed.It was also illustrated that the more is the value of normalized frequency of planar waveguide,the more is the value of the full spatial frequency width at half maximum.The relationship between the full angular width at half maximum intensity of central bright fringe versus wavelength,width of planar waveguide and relative refractive index of waveguide was presented too. |
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| Keywords: | planar wavegide far field diffraction central bright fringe spatial frequency full width at half maximum (FWHM) the angle width at half maximum intensity |
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