TY - JOUR
T1 - Temperature dependence of mode coupling in low-NA plastic optical fibers
AU - Savovic, Svetislav
AU - Kovacevic, Milan S.
AU - Bajic, Jovan S.
AU - Stupar, Dragan Z.
AU - Djordjevich, Alexandar
AU - Zivanov, Milos
AU - Drljaca, Branko
AU - Simovic, Ana
AU - Oh, Kyunghwan
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2015/1/1
Y1 - 2015/1/1
N2 - Using the power flow equation and experimental measurements, investigated in this paper is the state of mode coupling in low NA (0.3) step-index (SI) plastic optical fibers under varied temperature. Numerical results obtained using the power flow equation agree well with experimental measurements. It is found that elevated temperatures of low-NA SI plastic optical fibers strengthened mode coupling. These properties remained after a year, with the fiber being subjected to environmental temperature variations of >35 K. These thermally induced changes of the fiber properties are attributed to the increased intrinsic perturbation effects in the PMMA material at higher temperatures. This results in an increase of the measured bandwidth with increasing fiber temperature as well as earlier the bandwidth switch from the functional dependence of 1/z to 1/z1/2 (slower bandwidth decrease).
AB - Using the power flow equation and experimental measurements, investigated in this paper is the state of mode coupling in low NA (0.3) step-index (SI) plastic optical fibers under varied temperature. Numerical results obtained using the power flow equation agree well with experimental measurements. It is found that elevated temperatures of low-NA SI plastic optical fibers strengthened mode coupling. These properties remained after a year, with the fiber being subjected to environmental temperature variations of >35 K. These thermally induced changes of the fiber properties are attributed to the increased intrinsic perturbation effects in the PMMA material at higher temperatures. This results in an increase of the measured bandwidth with increasing fiber temperature as well as earlier the bandwidth switch from the functional dependence of 1/z to 1/z1/2 (slower bandwidth decrease).
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U2 - 10.1109/JLT.2014.2375515
DO - 10.1109/JLT.2014.2375515
M3 - Article
AN - SCOPUS:84919598809
SN - 0733-8724
VL - 33
SP - 89
EP - 94
JO - Journal of Lightwave Technology
JF - Journal of Lightwave Technology
IS - 1
M1 - 6977879
ER -