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Proceedings Paper

All-fiber optic confocal microscope with submicron depth resolution
Author(s): P. Nath; M. Buragohain; S. Sarkar; P. Datta; K. C. Sarma
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Paper Abstract

In the present work an all-fiber optic confocal microscope with submicron depth resolution is reported. The operation of the microscope is based on the principle of back reflectance of propagated light from the target in a curve-shaped step-index multimode optical fiber. Modulation of the back-reflected light with axial displacement of the target is monitored using a photodiode (PD). The advantage of the system is its simplicity and possibility of remote monitoring. An axial displacement of minimum 0.5 μm can be detected within the focusing depth with the present work.

Paper Details

Date Published: 20 February 2009
PDF: 5 pages
Proc. SPIE 7173, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications IX, 717308 (20 February 2009); doi: 10.1117/12.810248
Show Author Affiliations
P. Nath, Gauhati Univ. (India)
M. Buragohain, Gauhati Univ. (India)
S. Sarkar, Univ. of Calcutta (India)
P. Datta, Gauhati Univ. (India)
K. C. Sarma, Gauhati Univ. (India)


Published in SPIE Proceedings Vol. 7173:
Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications IX
Israel Gannot, Editor(s)

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