Non-Destructive Three-Dimensional Optical Imaging of a Fiber Bragg Grating

XM Goh; SS Kou; BP Kouskousis; NM Dragomir; SF Collins; GW Baxter; A Roberts

Journal article

Non-Destructive Three-Dimensional Optical Imaging of a Fiber Bragg Grating

XM Goh, SS Kou, BP Kouskousis, NM Dragomir, SF Collins, GW Baxter, A Roberts

IEEE Photonics Journal | Published : 2014

DOI: 10.1109/JPHOT.2014.2360282

Abstract

Here, we demonstrate a non-destructive quantitative phase imaging method, in conjunction with tomographic reconstruction techniques, to reconstruct the three-dimensional refractive index distribution of a fiber Bragg grating. In addition to being able to extract the fundamental period of the grating, we are able to reconstruct the refractive index profile of the fiber core and index variations associated with the grating.

University of Melbourne Researchers

Ann Roberts Author

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Grants

Awarded by Center for Outcomes Research and Evaluation, Yale School of Medicine

Funding Acknowledgements

This work was supported in part by the Australian Research Council under the Discovery Projects Scheme DP0878346. The work of S. S. Koh was supported by the Australian Research Council under through ARC DECRA Fellowship under Project DE 120102352. Media 1 gives the 3-D rendered video of the reconstructed core of the FBG. Note that in the video, the core and cladding of the FBG have been made transparent so as to show only the reconstructed grating structures.