| BOONZAJER FLAES, D. E., Jan STOPKA, Sergey TURTAEV, Johannes DE BOER, Tomáš TYC a Tomáš ČIŽMÁR. Robustness of light-transport processes to bending deformations of graded-index multimode waveguides. Physical Review Letters. The American Physical Society, 2018, roč. 120, č. 23, s. 233901-233905. ISSN 0031-9007. Dostupné z: https://dx.doi.org/10.1103/PhysRevLett.120.233901. |
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@article{1506818,
author = {Boonzajer Flaes, D. E. and Stopka, Jan and Turtaev, Sergey and de Boer, Johannes and Tyc, Tomáš and Čižmár, Tomáš},
article_number = {23},
doi = {http://dx.doi.org/10.1103/PhysRevLett.120.233901},
keywords = {Gradient-index optical fiber; bending; eigenmodes},
language = {eng},
issn = {0031-9007},
journal = {Physical Review Letters},
title = {Robustness of light-transport processes to bending deformations of graded-index multimode waveguides},
url = {https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.120.233901},
volume = {120},
year = {2018}
}
TY - JOUR
ID - 1506818
AU - Boonzajer Flaes, D. E. - Stopka, Jan - Turtaev, Sergey - de Boer, Johannes - Tyc, Tomáš - Čižmár, Tomáš
PY - 2018
TI - Robustness of light-transport processes to bending deformations of graded-index multimode waveguides
JF - Physical Review Letters
VL - 120
IS - 23
SP - 233901
EP - 233901
PB - The American Physical Society
SN - 00319007
KW - Gradient-index optical fiber
KW - bending
KW - eigenmodes
UR - https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.120.233901
L2 - https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.120.233901
N2 - Light transport through a multimode optical waveguide undergoes changes when subjected to bending deformations. We show that optical waveguides with a perfectly parabolic refractive index profile are almost immune to bending, conserving the structure of propagation-invariant modes. Moreover, we show that changes to the transmission matrix of parabolic-index fibers due to bending can be expressed with only two free parameters, regardless of how complex a particular deformation is. We provide detailed analysis of experimentally measured transmission matrices of a commercially available graded-index fiber as well as a gradient-index rod lens featuring a very faithful parabolic refractive index profile. Although parabolic-index fibers with a sufficiently precise refractive index profile are not within our reach, we show that imaging performance with standard commercially available graded-index fibers is significantly less influenced by bending deformations than step-index types under the same conditions. Our work thus predicts that the availability of ultraprecise parabolic-index fibers will make endoscopic applications with flexible probes feasible and free from extremely elaborate computational challenges.
ER -
BOONZAJER FLAES, D. E., Jan STOPKA, Sergey TURTAEV, Johannes DE BOER, Tomáš TYC a Tomáš ČIŽMÁR. Robustness of light-transport processes to bending deformations of graded-index multimode waveguides. \textit{Physical Review Letters}. The American Physical Society, 2018, roč.~120, č.~23, s.~233901-233905. ISSN~0031-9007. Dostupné z: https://dx.doi.org/10.1103/PhysRevLett.120.233901.
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