Vibration sensitivity of optical components: A survey
Vibration sensitivity of optical components: A survey
复制标题
光学元件的振动灵敏度：调查
DOI：
10.1109/fcs.2011.5977860
复制
发表时间：
2011
期刊：
影响因子：
--
通讯作者：
D. Howe
中科院分区：
文献类型：
--
作者：
A. Hati;C. Nelson;D. Howe
由于光纤和相关组件的固有振动敏感性，构建基于光纤的系统提出了与自由空间架构不同的挑战。一个调查的振动灵敏度的分类常用的光纤为基础的光学元件，以确定有问题的部分光纤为基础的设计。振动灵敏度的测量是具有挑战性的，因为很难将组件的灵敏度与测量设备本身分开。由桥接在固定测量系统和被测振动设备之间的互连纤维引入的噪声可以主导并掩盖被测设备的噪声。我们提出并证明了一种新的技术来测量基于光纤的光学元件的振动灵敏度。它使用一个共臂反向传播频移干涉仪，消除振动引起的相位噪声的互连光纤。所提出的技术提高了超过30 dB的振动引起的相位噪声地板相比，传统的频移马赫-曾德尔干涉仪，并允许测量低振动敏感的设备。
Building optical fiber-based systems presents different challenges than free-space architectures due to the inherent vibration sensitivity of the fiber and the associated components. A survey of the vibration sensitivity of an assortment of commonly used fiber-based optical components is presented to identify problematic parts of a fiber-based design. The measurement of vibration sensitivity is challenging due to the difficulty of separating the sensitivity of the components from the measurement apparatus itself. The noise introduced by the interconnecting fibers bridging between the stationary measurement system and the vibrating device under test can dominate and mask the noise of the device being measured. We propose and demonstrate a novel technique to measure the vibration sensitivity of fiber-based optical components. It uses a common-arm counter-propagating frequency-shifted interferometer that cancels the vibration-induced phase noise of the interconnecting fibers. The proposed technique improves the vibration-induced phase noise floor by more than 30 dB compared to a conventional frequency-shifted Mach-Zehnder interferometer and allows measurement of low vibration sensitive devices.