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    • 3. 发明申请
    • DEVICE FOR MEASURING THE PARAMETERS OF PHASE ELEMENTS AND OPTICAL FIBER DISPERSION AND A METHOD OF MEASURING THE PARAMETERS OF PHASE ELEMENTS AND OPTICAL FIBER DISPERSION
    • 用于测量相元件和光纤分散参数的装置以及测量相元件和光纤分散参数的方法
    • WO2017048141A1
    • 2017-03-23
    • PCT/PL2015/050065
    • 2015-11-30
    • POLSKIE CENTRUM FOTONIKI I ŚWIATŁOWODÓW
    • STĘPIEŃ, KarolJÓŹWIK, MichalinaNAPIERAŁA, MarekZIOŁOWICZ, AnnaSZOSTKIEWICZ, ŁukaszMURAWSKI, MichałLIPIŃSKI, StanisławHOŁDYŃSKI, ZbigniewSTAŃCZYK, TomaszNASIŁOWSKI, Tomasz
    • G01B9/02G01M11/02G01M11/00G01B11/06
    • G01B9/0209G01B9/02024G01B9/02064G01B9/02072G01B11/06G01M11/0271G01M11/331G01M11/338
    • A device for measuring the parameters of phase elements and dispersion of optical fibers, characterized in that it contains: at least one light source, serially connected to at least one fiber optic coupler, one of whose arms constitutes a part of the reference arm, and whose second arm constitutes a part of the measurement arm of the device, and at least one motorized linear stage is mounted on at least one arm of the device, and at least one of the arms of the device is connected, either directly, or through an additional fiber optic coupler, to at least one detector, and at least one collimator is placed in at least of the arms of the device, at least before the phase element. A method of measuring the parameters of the phase element and the dispersion of optical fibers, applying the device according the invention, is conducted in at least two stages, wherein the first stage assumes the calibration of the device according to the invention, and the second stage is the proper measurement, characterized in that during calibration of the device according to the invention, light from the low-coherence light source (1.1) is directed to the fiber optic coupler (2.1), where it is separated into two arms: measuring and reference, and then the motorized linear stage(6) moves, recording information on its position until zero difference of optical paths between particular fiber optic coupler arms is obtained. Interference occurs in the fiber optic coupler(2.2), after passing through collimators (3.2) and (4.2), and interferogram is collected in time delay, which translates into motorized linear stage movement. Inteferogram is collected by a photodetector, in particular by a photodiode, and after the device is calibrated, the system proceeds to proper measurement, in which a phase element, particularly a lens intended for measurement, is inserted in the measurement arm of the device according to the invention, between the collimators (3.1) and (3.2), after which, sliding the motorized linear stage, the position producing zero optical path difference is determined, and the thickness of the phase element is determined on the basis of the differential position of the equivalent optical path in the calibration measurement and the proper measurement with the phase element, and basing on the knowledge of the refractive index of the glass the lens was made of.
    • 一种用于测量相位元件的参数和光纤色散的装置,其特征在于,它包括:至少一个光源,串联地连接到至少一个光纤耦合器,其一个臂构成参考臂的一部分,以及 其第二臂构成装置的测量臂的一部分,并且至少一个电动线性平台安装在装置的至少一个臂上,并且装置的至少一个臂直接或通过 至少在相元件之前,将至少一个检测器和至少一个准直器的附加光纤耦合器放置在装置的至少臂中。 测量本发明装置的相位元件参数和光纤色散的方法至少在两个阶段进行,其中第一阶段进行根据本发明的装置的校准,而第二阶段 阶段是适当的测量,其特征在于在根据本发明的装置的校准期间,来自低相干光源(1.1)的光被引导到光纤耦合器(2.1),其中它被分成两个臂:测量 并参考,然后电动线性平台(6)移动,记录其位置上的信息,直到获得特定光纤耦合器臂之间的光路的零差。 在通过准直器(3.2)和(4.2)之后,在光纤耦合器(2.2)中发生干扰,并且时间延迟收集干涉图,这转化为电动线性阶段运动。 传感器由光电检测器特别是由光电二极管收集,并且在器件被校准之后,系统进行适当的测量,其中相位元件,特别是用于测量的透镜被插入设备的测量臂中,根据 在本发明中,在准直器(3.1)和(3.2)之间,确定了电动线性平台的滑动,产生零光程差的位置,并且基于差动位置确定相位元件的厚度 的校准测量中的等效光路和相位元件的适当测量,并且基于对透镜的玻璃的折射率的知识。