Abstract

A practical all-fiber three-dimensional measurement system is demonstrated with an incoherent interferometer at the eye-safe wavelength of 1.55μm. The sensitivity and axial resolution are as high as 102dB and 1.4μm from a few meters’ distance, respectively. A rotating scanner is developed for axial scanning, and a wide longitudinal scanning range of 54mm is demonstrated. The high resolution images of a few samples are clearly obtained at the speed of 52points/s. Moreover, the resolution, sensitivity, speed, and angle dependence are discussed for measurement of a 100yen Japanese coin.

© 2008 Optical Society of America

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