Three-dimensional refractive index reconstruction with quantitative phase tomography.
Optical tomography based on quantitative phase microscopy is used to determine nondestructively and with high spatial resolution the three-dimensional (3D) refractive index distributions within optical fiber devices. After obtaining a series of phase images of the fiber as it is rotated around its longitudinal axis at regularly-spaced angular positions, filtered backprojection is used to reconstruct a 3D map of the refractive index. The 3D refractive index distribution of the join region between two fusion spliced optical fibers is reconstructed with accuracy better than 10(-3).
Dragomir
N M
NM
School of Physics, The University of Melbourne, Parkville 3010, Victoria, Australia. n.dragomir@physics.unimelb.edu.au
Goh
X M
XM
Roberts
A
A
D007091:Image Processing, Computer-Assisted; D021621:Imaging, Three-Dimensional / Q000295:instrumentation / Q000379:methods*; D008858:Microscopy, Phase-Contrast; D012031:Refractometry / Q000295:instrumentation / Q000379:methods*; D041622:Tomography, Optical / Q000295:instrumentation / Q000379:methods*