Performance comparison between plastic-based fiber bundle and multimode fused coupler as probes in displacement sensors
Document Type
Article
Publication Date
1-1-2010
Abstract
Fiber optic displacement sensors with bundled and fused coupler fiber probes are being investigated. The effects of axial displacements on the detected output voltages are also investigated for fiber bundle probe sensor. The resolutions obtained are 0.9 and 4.0 mu m, for the front and back slopes, respectively. A comparison is made with a commercial plastic based multimode fused coupler which gives a better range of 2.0 mm. This is longer than that achieved by the fiber bundle probe which is only 0.4 mm and has a lower resolution of 34 mu m for the case of 50:50 coupling ratio.
Keywords
Coupler, Laser Phys, Displacement Sensor, Coupling Ratio, Flat Mirror
Divisions
fac_eng,PHYSICS
Publication Title
Laser Physics
Volume
20
Issue
10
Publisher
IOP Publishing
Publisher Location
233 SPRING ST, NEW YORK, NY 10013-1578 USA