Chi Wang, Xiangyu Xie, Ying Deng, Yun Luo, Wei Li, Xia Zhang, Guoying Feng. Three-dimensional refractive index reconstruction of optical fibers based on single-element interferometer computed tomography[J]. High Power Laser and Particle Beams, 2022, 34(4): 041006
- High Power Laser and Particle Beams
- Vol. 34, Issue 4, 041006 (2022)
Fig. 1. Optical fiber refractive index measurement of micro tomography based on unit interference
Fig. 2. Simulation projection integrals of single-mode fiber, multi-mode fiber, panda-type polarization-maintaining fiber and grapefruit-type photonic crystal fiber at θ =0o, 22.5o, 45o, 90o
Fig. 3. Sinograms of single-mode fiber, multi-mode fiber, panda-type PM fiber, and grapefruit-type photonic crystal fiber at different numbers of projections and angles
Fig. 4. Refractive index distribution of the fiber according to the back-projection of the sinogram in Fig. 3
Fig. 5. Interferogram, phase distribution 3D display of single-mode and multi-mode fibers
Fig. 6. Refractive index distribution of the single-mode fiber and multi-mode fiber along the diameter direction and cross-section of the fault plane
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