Light propagation and acousto‐optic interaction in a LiNbO3 spherical waveguide
Light propagation and acousto‐optic interaction in a LiNbO3 spherical waveguide
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LiNbO3 球形波导中的光传播和声光相互作用
DOI：
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发表时间：
1985
期刊：
影响因子：
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通讯作者：
Chin C. Lee
中科院分区：
文献类型：
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作者：
Q. Li;C. S. Tsai;S. Sottini;Chin C. Lee
首次实现了波长为6328-A的光束在LiNbO_3球面波导中的传输、导引、准直和聚焦，以及以245 MHz为中心的声表面波在这种波导中的声光衍射。在入射光中测量了接近衍射限制的特性，并且衍射光被证明保持了这一理想的特性。进行了光束扫描和各种射频信号处理实验，包括频谱分析、相关和卷积，取得了令人鼓舞的结果。文中还讨论了球面波导声光信号处理模块相对于平面波导声光信号处理模块的潜在优势。
Propagation, guiding, collimation, and focusing of a light beam at 6328‐A wavelength in a LiNbO3 spherical waveguide as well as acousto‐optic diffraction in such a waveguide using the surface acoustic wave centering at 245 MHz have been accomplished for the first time. Near diffraction‐limited characteristics were measured in the incident light and the diffracted light was shown to preserve this desirable characteristic. Light beam scanning and various rf signal processing experiments including spectral analysis, correlation, and convolution were carried out with encouraging results. The potential advantages of the resultant spherical waveguide acousto‐optic signal processor modules over the planar waveguide counterparts are also discussed.