无远端光学元件的内窥镜：通过光纤束实现视频速率扫描显微镜。

Toward endoscopes with no distal optics: video-rate scanning microscopy through a fiber bundle.

机构信息

Institut Fresnel, Aix-Marseille Université, CNRS, École Centrale Marseille, Domaine Universitaire de Saint Jérôme, Marseille, France.

出版信息

Opt Lett. 2013 Mar 1;38(5):609-11. doi: 10.1364/OL.38.000609.

DOI:10.1364/OL.38.000609

PMID:23455239

Abstract

We report a step toward scanning endomicroscopy without distal optics. The focusing of the beam at the distal end of a fiber bundle is achieved by imposing a parabolic phase profile across the exit face with the aid of a spatial light modulator. We achieve video-rate images by galvanometric scanning of the phase tilt at the proximal end. The approach is made possible by the bundle, designed to have very low coupling between cores.

摘要

我们报告了朝着无远端光学元件的内窥扫描迈出的一步。通过在空间光调制器的辅助下，在光纤束的出射端面施加抛物线相位分布，实现了光束在远端的聚焦。通过在近端对相位倾斜进行振镜扫描，实现了视频速率的成像。这种方法之所以成为可能，是因为光纤束的设计使得芯之间的耦合非常低。