OPTICAL ROTATION CHARACTERISTIC MEASURING METHOD OF LIVING BODY USING POLARIZATION MODULATING INTERFEROMETER SYSTEM AND OPTICAL ROTATION CHARACTERISTIC MEASURING DEVICE OF LIVING BODY

摘要

PROBLEM TO BE SOLVED: To provide a non-invasive glucose measuring device of a living body that has not been put into a practical use so far.;SOLUTION: A problem has been solved in such a manner that, in the system arranging a specimen material (sample) such as a living body in an optical fiber ring interferometer and measuring a phase difference between right and left circularly polarized light beams, a polarization control device is used in a ring optical path, and a polarized light state of signal light beams incident from both sides of the sample is switched to at least a pair of orthogonal polarized light beams in a constant period. A method of controlling the polarized light beams is adopted so that the polarized light beams incident from both sides of the sample are always orthogonal to each other. A positional relationship of the lenses for controlling a plane of polarization preserving optical fiber used for an opposing optical system that nips the sample is optimized, and a beam waist in the sample is set between 30 μm and 50 μm.;COPYRIGHT: (C)2016,JPO&INPIT