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首页> 外文会议>Conference on Integrated Optics Devices Ⅴ Jan 23-25, 2001, San Jose, USA >Theoretical characteristics of TM-pass waveguide polarizers for glass integrated optics using periodic dielectric multilayers as cladding
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Theoretical characteristics of TM-pass waveguide polarizers for glass integrated optics using periodic dielectric multilayers as cladding

机译：用于玻璃集成光学器件的TM通道波导偏振器的理论特性，使用周期性电介质多层作为包层

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摘要

A novel TM-pass waveguide polarizer, the cladding of which consists of a periodic dielectric multilayer, has been theoretically investigated for the glass integrated optics. The periodic dielectric multilayer exhibits large optical anisotropy and the effective refractive index for the TE polarization (n_(TE)) becomes higher than that for the TM polarization (n_(TM)). Therefore, the highly efficient TM-pass waveguide polarizer can be formed by using the periodic dielectric multilayer whose effective refractive indices satisfy the condition n_(TE)>n_c> n_(TM), where n_c represents the refractive index of the core. As it is difficult to fabricate the thick periodic multilayer (≈1mm) by using conventional film deposition systems, we also proposed to overlay the thin periodic dielectric multilayer with the fully thick polymer layer, which can easy be formed by using a dipping method. It has been theoretically confirmed that the high extinction ratio is kept while the structural parameters, including the fill fraction for the periodic dielectric multilayer and the refractive index of the polymer layer, satisfy the polarizer condition. As the extinction ratio is high and the structural tolerance is not severe in comparison with other waveguide polarizers, the proposed waveguide polarizer would be useful for the glass integrated optics.
机译：从理论上研究了一种新颖的TM波导波导偏振器，其包层由周期性的介电多层组成，用于玻璃集成光学器件。周期性介电多层表现出大的光学各向异性，并且TE偏振的有效折射率（n_（TE））变得高于TM偏振的有效折射率（n_（TM））。因此，可以通过使用其有效折射率满足n_（TE）＞ n_c＞ n_（TM）的条件的周期性电介质多层体来形成高效的TM通过波导偏振器，其中n_c表示芯的折射率。由于使用常规的薄膜沉积系统难以制造厚的周期性多层结构（≈1mm），因此我们还建议在薄的周期性电介质多层结构上覆盖全厚度的聚合物层，该聚合物层很容易通过浸涂法形成。从理论上已经证实，在包括周期性介电多层的填充率和聚合物层的折射率在内的结构参数满足偏振器条件的同时，保持了高消光比。与其他波导偏振片相比，由于消光比高且结构公差不严格，因此所提出的波导偏振片可用于玻璃集成光学器件。

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