Lee Anthony M D, Pahlevaninezhad Hamid, Yang Victor X D, Lam Stephen, MacAulay Calum, Lane Pierre
Opt Lett. 2014 Jun 15;39(12):3638-41. doi: 10.1364/OL.39.003638.
We report a polarization diversity detection scheme for optical coherence tomography with a new, custom, miniaturized fiber coupler with single mode (SM) fiber inputs and polarization maintaining (PM) fiber outputs. The SM fiber inputs obviate matching the optical lengths of the X and Y OCT polarization channels prior to interference and the PM fiber outputs ensure defined X and Y axes after interference. Advantages for this scheme include easier alignment, lower cost, and easier miniaturization compared to designs with free-space bulk optical components. We demonstrate the utility of the detection system to mitigate the effects of rapidly changing polarization states when imaging with rotating fiber optic probes in Intralipid suspension and during in vivo imaging of human airways.
我们报告了一种用于光学相干断层扫描的偏振分集检测方案，该方案采用了一种新型的、定制的、小型化光纤耦合器，其具有单模（SM）光纤输入和保偏（PM）光纤输出。单模光纤输入避免了在干涉之前匹配X和Y OCT偏振通道的光学长度，而保偏光纤输出确保了干涉之后X和Y轴的确定。与使用自由空间块状光学元件的设计相比，该方案的优点包括更容易对准、成本更低以及更容易小型化。我们展示了该检测系统在使用旋转光纤探头对脂质乳剂悬浮液进行成像以及在人体气道的体内成像过程中减轻快速变化的偏振态影响的效用。
