Soller Brian, Gifford Dawn, Wolfe Matthew, Froggatt Mark
Opt Express. 2005 Jan 24;13(2):666-74. doi: 10.1364/opex.13.000666.
We describe a technique for polarization sensitive optical frequency domain reflectometry (OFDR) that achieves 22 micrometer two-point spatial resolution over 35 meters of optical length with -97 dB sensitivity in a single measurement taking only seconds. We demonstrate OFDR's versatility in both time- and frequency-domain metrology by analyzing a fiber Bragg grating (FBG) in both the spectral and impulse response domains. We also demonstrate how a polarization diversity receiver can be used in an OFDR system to track changes in the polarization state of light propagating through a birefringent component.
我们描述了一种用于偏振敏感光频域反射仪（OFDR）的技术，该技术在仅需几秒的单次测量中，就能在35米的光学长度上实现22微米的两点空间分辨率，灵敏度达到-97分贝。通过在光谱和脉冲响应域中分析光纤布拉格光栅（FBG），我们展示了OFDR在时域和频域计量方面的多功能性。我们还展示了如何在OFDR系统中使用偏振分集接收器来跟踪通过双折射组件传播的光的偏振态变化。
