Paper Title:
Approximation of Coupling Mode and Fitting Alignment in Planar Light Waveguide Packaging
  Abstract

This paper describes a new active optical alignment method that is developed for the alignment of optical fibers to planar waveguide in order to improve the precision and efficiency of that. A new coupling mode, which is a polynomial function, is rebuilt by simplifying effect factors of the light field coupling process, such as angular offsets and line offsets. The optimum curve which is calculated to fit those sampling points by taking advantage of the least square method assists to locate the maximum coupling point of the alignment. Simulation results show that the alignment of two single mode fields is improved into 0.1μm precision with only 6 sampling points by the new method instead of 0.4μm offset with average 21.4 sample points by hill-climbing method. Using this alignment method, a fiber-to-waveguide, high-efficient coupling that provides higher accurate alignment with less sampling points is achieved.

  Info
Periodical
Advanced Materials Research (Volumes 314-316)
Chapter
Material Design of Computer Aided
Edited by
Jian Gao
Pages
1229-1233
DOI
10.4028/www.scientific.net/AMR.314-316.1229
Citation
B. Yang, J. A. Duan, "Approximation of Coupling Mode and Fitting Alignment in Planar Light Waveguide Packaging", Advanced Materials Research, Vols. 314-316, pp. 1229-1233, 2011
Online since
August 2011
Authors
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Price
$32.00
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