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Proceedings Paper

Single-body lensed fiber probe actuated by magnetic force for spectral domain optical coherence tomography
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Paper Abstract

We propose a fiber-based hand-held scanning probe suitable for the sample arm of spectral domain optical coherence tomography (SD-OCT). To achieve a compact and miniaturized probe, a single-body lensed-fiber, on which an iron-bead ferromagnetic material is loaded was fabricated and a solenoid actuator driven by readily available driving voltage (10 V) and current (120 mA) was utilized. A focusing lens was directly formed in a single-body onto the distal end of a fiber, which eliminated any complement optical components in front of a conventional sample probe and removes any optical alignment problem. By using the soft-iron solenoid actuator, the fiber in the probe is activated which gives the sample scanning for the OCT imaging. Moreover, the simple design of the solenoid allowed easy fabrication and a good practicality. With the implemented probe, OCT images of a pearl and a human finger tip were obtained at an imaging speed of 30 Hz and a scanning range of 4 mm.

Paper Details

Date Published: 20 February 2009
PDF: 7 pages
Proc. SPIE 7168, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIII, 71682I (20 February 2009); doi: 10.1117/12.808961
Show Author Affiliations
Eun Jung Min, Gwangju Institute of Science and Technology (Korea, Republic of)
Jihoon Na, Gwangju Institute of Science and Technology (Korea, Republic of)
Seon Young Ryu, Gwangju Institute of Science and Technology (Korea, Republic of)
Byeong Ha Lee, Gwangju Institute of Science and Technology (Korea, Republic of)


Published in SPIE Proceedings Vol. 7168:
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIII
James G. Fujimoto; Joseph A. Izatt; Valery V. Tuchin, Editor(s)

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