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Micro-ring based planar lightwave circuit devices for optical communications.

机译：用于光通信的基于微环的平面光波电路设备。

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摘要

Wavelength-division-multiplexing (WDM) technology has been widely employed in current optical communication systems. Optical signal processing and methods to increase the spectral efficiency of the system have attracted tremendous research interest due to the surging bandwidth and speed requirements introduced by Internet traffic. These two areas demand high-performance optical components. To improve component performance and reduce its cost, planar lightwave circuits (PLC) technology provides a very promising platform for component integration. Among many PLC-based device structures, micro-ring structures are especially attractive due to their versatile functionality and compact size. In this thesis, we examine several micro-ring based PLC devices, namely filter, interleaver, and switch array for use in optical communication systems.;We describe in detail the design concerns, testing methodologies, and control schemes for these key, microring applications. By expanding low-coherence interferometric measurements, we have characterized the behavior of these components and demonstrated a systematic thermal-control scheme for the micro-ring based filter and interleaver. We further introduce a more complicated ring-based switch array (which can be used as a tunable filter array) based on the operational principles and control capability of the micro-ring filter. We also compare our measurement results of devices fabricated by commercial vendors with our analysis models.;Although this thesis is mainly about micro-ring-based optical filters, interleavers, and switches, other PLC based devices are also included in this work due to their relevancy. One of these is the AWG. AWG is widely used in the optical communication systems as a (de)multiplexer. We introduce a scheme using AWG as a testing vehicle to investigate the mode profile of waveguides. The motivation for this modeling is the system requirements on the width and flatness of the (de)multiplexer passband. The passband width and flatness of any AWG channel highly depends on its input waveguide design. Based on the low-coherence interferometric method, we propose a systematic measurement and analysis scheme to characterize the input waveguide mode profile and demonstrate its effectiveness for Gaussian, multimode interferometer (MMI) and synchronized waveguides designed by commercial vendors.
机译：波分复用（WDM）技术已被广泛应用于当前的光通信系统中。由于Internet流量对带宽和速度的要求不断提高，光信号处理和提高系统频谱效率的方法引起了极大的研究兴趣。这两个领域需要高性能的光学组件。为了提高组件性能并降低其成本，平面光波电路（PLC）技术为组件集成提供了非常有前途的平台。在许多基于PLC的设备结构中，微环结构因其多功能的功能和紧凑的尺寸而特别吸引人。在本文中，我们研究了几种基于微环的PLC设备，即用于光通信系统的滤波器，交织器和开关阵列。;我们详细描述了这些关键的微环应用的设计关注点，测试方法和控制方案。 。通过扩展低相干干涉测量，我们已经表征了这些组件的行为，并展示了基于微环的滤波器和交织器的系统热控制方案。根据微环滤波器的工作原理和控制能力，我们进一步介绍了一个更复杂的基于环的开关阵列（可以用作可调滤波器阵列）。我们还将商业供应商制造的设备的测量结果与我们的分析模型进行了比较。；尽管本文主要涉及基于微环的光学滤波器，交织器和开关，但由于它们的原因，其他基于PLC的设备也包括在本文中关联。 AWG是其中之一。 AWG在光通信系统中被广泛用作（解复用器）。我们介绍一种使用AWG作为测试工具的方案，以研究波导的模式轮廓。这种建模的动机是对（解复用器）通带的宽度和平坦度的系统要求。任何AWG通道的通带宽度和平坦度在很大程度上取决于其输入波导设计。基于低相干干涉法，我们提出了一种系统化的测量和分析方案，以表征输入波导模式轮廓，并证明其对商业厂商设计的高斯，多模干涉仪（MMI）和同步波导的有效性。

著录项

  • 作者

    Wang, Zhipeng.;

  • 作者单位

    University of Maryland, Baltimore County.;

  • 授予单位 University of Maryland, Baltimore County.;
  • 学科 Engineering Electronics and Electrical.
  • 学位 Ph.D.
  • 年度 2009
  • 页码 169 p.
  • 总页数 169
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 无线电电子学、电信技术;
  • 关键词

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