Functional Tapered Fiber Devices Using Polymeric Coatings

Oscar González-Cortez, Rodolfo A. Carrillo-Betancourt, J. Hernández-Cordero, Amado M. Velázquez-Benítez
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Abstract

A wide variety of fiber devices can be created by adding special coatings on tapered sections of optical fibers. In this work we present the fundamentals for the fabrication of tapered optical fibers coated with functional polymers. The required aspects of light propagation in tapered sections of optical fibers are introduced and the relevant parameters enabling light interaction with external media are discussed. A special case of interest is the addition of polymeric coatings with prescribed thicknesses in the tapered sections allowing for adjusting the light propagation features. We assess the use of liquid polymer coatings with varying thicknesses along the taper profile that can be tailored for tuning the transmission features of the devices. Hence, we introduce a methodology for obtaining coatings with predefined geometries whose optical properties will depend on the polymer functionality. As demonstrated with numerical simulations, the use of functional polymer coatings in tapered optical fibers allows for obtaining a wide variety of functionalities. Thus, controlled polymer coating deposition may provide a simple means to fabricate fiber devices with adjustable transmission characteristics.
使用聚合物涂层的功能性锥形光纤器件
通过在光纤的锥形部分添加特殊涂层,可以制造出各种各样的光纤器件。在这项工作中,我们提出了用功能聚合物包覆锥形光纤的基本原理。介绍了光在光纤锥形段中传播所需的方面,并讨论了使光与外部介质相互作用的相关参数。我们感兴趣的一个特殊情况是在锥形部分添加具有规定厚度的聚合物涂层,以调整光的传播特性。我们评估了液体聚合物涂层的使用,这些涂层沿着锥度轮廓具有不同的厚度,可以定制以调整器件的传输特性。因此,我们介绍了一种方法来获得具有预定义几何形状的涂层,其光学性质将取决于聚合物的功能。数值模拟表明,在锥形光纤中使用功能性聚合物涂层可以获得各种各样的功能。因此,受控聚合物涂层沉积可提供一种制造具有可调传输特性的光纤器件的简单方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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