【 中文摘要 】本发明公开了一种基于多模光纤照明的点衍射数字全息显微装置，包括部分相干光产生模块、望远镜系统、物参光分离模块和图像采集模块，其中，部分相干光产生模块用于产生部分相干照明光，包括激光器以及沿激光器的光路依次设置的第一显微物镜、毛玻璃片、成像单元和多模光纤单元，毛玻璃片垂直于光轴设置且能够绕光轴旋转以产生部分相干光；望远镜系统用于获得具有样品信息的物光波场分布；物参光分离模块用于将来自望远镜系统具有样品信息的物光波进行衍射分光，产生偏振方向正交的物光和参考光；图像采集模块用于采集由物光和参考光产生的全息图。该显微装置具有可实时振幅/相位定量显微成像、抗振动性好、信噪比高、结构简单等优点。

【 英文摘要 】The invention discloses a point diffraction digital holographic microscopic device based on multimode optical fiber illumination. comprises a partial coherent light generating module, a telescope system, an object parameter light separating module and an image collecting module, wherein the partially coherent light generating module is used for generating partially coherent illumination light and comprises a laser, a first microscope objective lens, a ground glass sheet, an imaging unit and a multi-mode optical fiber unit, wherein the first microscope objective lens, the ground glass sheet, the imaging unit and the multi-mode optical fiber unit are sequentially arranged along an optical path of the laser; the ground glass sheet is perpendicular to an optical axis and can rotate around the optical axis to generate partially coherent light; and the first microscope objective lens, the ground glass sheet, the imaging unit and the multi-mode optical fiber unit are sequentially arranged along the optical path of the laser. The telescope system is used for obtaining object light wave field distribution with sample information; The object parameter light separating module is used for diffracting and splitting object light waves with sample information from the telescope system to generate object light and reference light with orthogonal polarization directions; The image acquisition module is used for acquiring a hologram generated by the object light and the reference light. The microscopic device has the advantages of real-time amplitude/phase quantitative microscopic imaging, good vibration resistance, high signal-to-noise ratio, simple structure and the like.

【 技术功效 】