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A Study on the Optical Device Alignment Characteristics Improvement using Multi-Axis Ultra Precision Stage  

Jeong, Sang-Hwa (조선대학교 기계공학과)
Cha, Kyoung-Rae (조선대학교 기계공학과)
Kim, Gwang-Ho (조선대학교 광응용공학과)
Publication Information
Journal of the Korean Society for Precision Engineering / v.22, no.12, 2005 , pp. 175-183 More about this Journal
Abstract
In recent years, as the demands of VBNS and VDSL increase, the development of kernel parts of optical communication such as PLC(Planar Light Circuit), Coupler, and WDM elements increases. The alignment and the attachment technology are very important in the fabrication of optical elements. In this Paper, the optical alignment characteristic of multi-axis ultra precision stage is studied. The alignment algorithms are studied for applying to the ultra precision multi-axis stage. The alignment algorithm is comprised of field search and peak search algorithms. The contour of optical power signals can be obtained by field search and the precise coordinate can be found out by peak search. Three kinds of alignments, such as 1 ch. input vs. 1 ch. output optical stack, 1 ch. input vs. 8 ch. output PLC stacks, and ferrule vs. ferrule, are performed for investigating the alignment characteristics.
Keywords
Optical fiber Alignment; PZT Actuator; Flexure; Capacitance gauge; Field Search; Peak Search;
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Times Cited By KSCI : 1  (Citation Analysis)
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