单光纤成像技术

发布时间：2018-03-09 12:38

本文选题：光纤光学　切入点：内窥镜　出处：《激光与光电子学进展》2017年03期 　论文类型：期刊论文

【摘要】：综述了单光纤成像技术的研究现状和动态。单光纤成像技术采用单根多模光纤进行成像,光纤既是成像器件又是传像器件,无需增加扫描器件和成像透镜便可将光纤一端视场范围内的场景一次性传输到另一端,因此又称为宽场光纤成像技术。该技术可减小成像光纤探头的直径,实现超细内窥成像。单光纤成像技术是一种计算成像方法,是在全息光学和傅里叶光学的基础上发展起来的,包括传输矩阵法和相位补偿法两种成像方法。对于多模光纤,如果可以预先得到频域(或空间域)的传输矩阵,则可以从光纤输出端光场中恢复目标图像,也可以预先测量光束通过光纤后的波前畸变。在成像系统中增加该波前畸变的共轭相位场,可以消除相应的波前畸变,从而在输出端获得不失真的目标图像。
[Abstract]:In this paper, the research status and development of single fiber imaging technology are reviewed. Single fiber imaging technology uses single multimode optical fiber, which is both an imaging device and an image transmission device. Without adding scanning devices and imaging lenses, the scene in the field of view at one end of the fiber can be transmitted to the other end at one time, so it is also called the wide-field optical fiber imaging technique, which can reduce the diameter of the imaging fiber probe. Single fiber imaging technology is a computational imaging method developed on the basis of holographic optics and Fourier optics, including two imaging methods, transmission matrix method and phase compensation method. If a transmission matrix in frequency domain (or spatial domain) can be obtained in advance, the target image can be recovered from the optical field at the output end of the fiber. The wavefront distortion of the beam passing through the fiber can also be measured in advance. By adding the conjugate phase field of the wavefront distortion in the imaging system, the corresponding wavefront distortion can be eliminated, and the target image without distortion can be obtained at the output end.
【作者单位】：中国科学院西安光学与精密机械研究所信息光子学研究室;
【基金】：国家自然科学基金(61535015,61275149,61275086) 陕西省教育厅专项科学研究计划(16JK1083)
【分类号】：TN253

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