Joint transform correlator for the detection of defects in optical fibers

Wei Liu; Hakil K. Kim; Sukmock Lee; Seung-Gol Lee

doi:10.1117/1.601662

1 May 1998 Joint transform correlator for the detection of defects in optical fibers

Wei Liu, Hakil K. Kim, Sukmock Lee, Seung-Gol Lee

Optical Engineering, Vol. 37, Issue 5, (May 1998). https://doi.org/10.1117/1.601662

A hybrid optical/digital system for detecting defects in optical fibers is proposed. Since the structure of the fibers is the multilayer coaxial cylinder with step indices, the defects in any layer change the spatial frequency spectrum of the fibers and can be detected by comparison with the spectrum of a desired perfect fiber. A joint transform correlator can carry out the detection by continuously updating the test fiber with the desired reference fiber in its stationary position. We show that by joint transform correlator, fiber defects can be successfully detected.

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Wei Liu, Hakil K. Kim, Sukmock Lee, and Seung-Gol Lee "Joint transform correlator for the detection of defects in optical fibers," Optical Engineering 37(5), (1 May 1998). https://doi.org/10.1117/1.601662

Published: 1 May 1998

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