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首页> 外文会议>Conference on Microwave and Terahertz Photonics; 20040429-20040430; Strasbourg; FR >New optical methods for microwave signal generation
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New optical methods for microwave signal generation

机译：产生微波信号的新光学方法

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摘要

The combination of the optical and microwave techniques offers new approaches for the generation of microwave signals. That is made possible by the very high bandwidth of the optical devices and the very low attenuation of the optical fiber. The main general advantage of these approaches is the generation of very high frequencies with low noise. For the optical stabilization of microwave oscillators a clean reference signal is optically transmitted. However, instead of the millimeter wave signal, one of its subharmonics is optically transmitted and the millimeter wave signal is generated utilizing the subharmonic signal as a reference. This way the optical components become much simpler and cheaper. In this procedure a crucial point is the frequency division at millimeter waves. For this purpose a new method is introduced: the superharmonic injection locking of oscillators. Utilizing combined injection and phase locking techniques the frequency of the microwave oscillator is stabilized while its noise is significantly reduced.
机译：光学和微波技术的结合为产生微波信号提供了新的方法。这通过光学设备的非常高的带宽和光纤的非常低的衰减成为可能。这些方法的主要优点是可以产生非常高的频率且噪声低。为了微波振荡器的光学稳定性，光学传输干净的参考信号。然而，代替毫米波信号，其次谐波之一被光学地传输，并且利用次谐波信号作为参考来生成毫米波信号。这样，光学组件变得更加简单和便宜。在此过程中，关键点是毫米波的分频。为此目的，引入了一种新方法：振荡器的超谐波注入锁定。利用注入和锁相技术的结合，微波振荡器的频率得以稳定，同时其噪声也大大降低。

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