Wideband modulators and transmitters for analog fiber optic links

2013 IEEE Avionics, Fiber-Optics and Photonics Technology Conference (AVFOP) Pub Date : 2013-11-14 DOI:10.1109/AVFOP.2013.6661613

W. Charczenko, M. Cimolino, G. Abbas, David Moilanen, J. Takayesu, M. Hall, S. Thaniyavarn

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引用次数: 3

Abstract

The replacement of coaxial cable with single mode fiber on various airborne platforms has a number of advantages. The use of fiber optic cable, in addition to reducing the size, weight, and cross section of the point to point links, offers greater immunity to electromagnetic interference with less required shielding. Currently, shielded coaxial cable is being used in analog links for transmitting local oscillator signals, and to send various received antenna signals to banks of RF receiver's onboard aircraft. Although the physical length of these transmission lines are less than a few dozen meters, their stringent RF requirements require the use of unique photonic components that are not typically used in digital telecommunications fiber optic links. In this presentation, EOSPACE will show a new generation of modulators and their integration into small form factor transmitters for use in high dynamic range analog fiber optic links. Currently most RF links are operating at various frequency bands from 10kHz to approximately 20 GHz. In anticipation of future systems, EOSPACE is also working on extending the wideband operation of these modulators out to 110 GHz.

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模拟光纤链路用宽带调制器和发射机

在各种机载平台上用单模光纤代替同轴电缆具有许多优点。光纤电缆的使用，除了减小了点对点链路的尺寸、重量和横截面外，还提供了更强的电磁干扰抗扰能力，所需的屏蔽更少。目前，屏蔽同轴电缆被用于模拟链路，用于传输本地振荡器信号，并将各种接收到的天线信号发送到机载射频接收器组。虽然这些传输线的物理长度不到几十米，但它们严格的射频要求要求使用独特的光子元件，而这些元件通常不用于数字电信光纤链路。在本次演讲中，EOSPACE将展示新一代调制器及其集成到小尺寸发射器中的高动态范围模拟光纤链路。目前，大多数射频链路工作在从10kHz到大约20ghz的各种频带上。为了预测未来的系统，EOSPACE还致力于将这些调制器的宽带操作扩展到110 GHz。

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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2013 IEEE Avionics, Fiber-Optics and Photonics Technology Conference (AVFOP)

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