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声扭波在单模光纤中的应用
Acoustic Torsional Waves in Single-Mode Optic Fiber
【摘要】 光纤中的基模 L P0 1 有两种偏振态。通过在沿光纤方向加入声扭波可以引起两个偏振模发生耦合。本文主要介绍了声扭波的振幅和色散关系 ,同时也发现 ,采用高阶声扭波可以提高耦合系数的值
【Abstract】 In a single mode optical fiber the fundamental LP 01 spatial mode occurs in two polarization modes.Coupling between these polarization modes can be provided by acoustic torsional waves propagating along the fiber.We discuss the amplitude of torsiona waves and dispersion relation.It has also been found that by using higher radial orders of the acoustic torsional modes the coupling efficiency can be increased.
- 【文献出处】 光电子·激光 ,Journal of Optoelectronics.laser , 编辑部邮箱 ,2001年09期
- 【分类号】TN256
- 【被引频次】1
- 【下载频次】36