Fiber optic displacement sensor employing a graded index lens
Applied Optics, Vol. 29, Issue 4, pp. 544-547 (1990)
http://dx.doi.org/10.1364/AO.29.000544
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Abstract
A novel intensity modulated fiber optic displacement sensor based on the relative motion of an optical fiber and a graded index lens is described. The technique allows the use of either single- or multimode optical fibers in either single or dual fiber configurations. Displacement sensitivities of 25 Å have been measured using 50-µm core diam multimode fibers, with a light emitting diode source. Theoretical sensitivities of the order of 0.01 nm are predicted with the use of single-mode fibers.
© 1990 Optical Society of America
Citation
Patrick J. Murphy and Thomas P. Coursolle, "Fiber optic displacement sensor employing a graded index lens," Appl. Opt. 29, 544-547 (1990)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-29-4-544
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