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Published October 2008 | Published
Journal Article Open

Micromachined Fiber Optical Sensor for In Vivo Measurement of Optical Properties of Human Skin


In this paper, we present the design, fabrication, and testing of a new micromachined fiber optic sensor probe to conduct oblique incidence diffuse reflectance spectrometry (OIDRS) for in vivo estimation of optical properties of human skins. The probe consists of three source fibers, two linear array of collection fibers, and four micromachined positioning devices for accurate alignment of the fibers. Micromachining plays a significant role in the probe development by enabling device miniaturization, low-cost fabrication, and precise assembly. The new probe has been successfully used to estimate the absorption and scattering coefficient spectra of skin with an optical spectrum between 455 and 765 nm.

Additional Information

© 2008 IEEE. Manuscript received February 3, 2008; accepted March 13, 2008. This work was supported by the National Institute of Health under Grant R01 CA106728. The associate editor coordinating the review of this manuscript and approving it for publication was Prof. Okyay Kaynak.

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