Temperature dependence of mode coupling in low-NA plastic optical fibers

Svetislav Savovic, Milan S. Kovacevic, Jovan S. Bajic, Dragan Z. Stupar, Alexandar Djordjevich, Milos Zivanov, Branko Drljaca, Ana Simovic, Kyunghwan Oh

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


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).

Original languageEnglish
Article number6977879
Pages (from-to)89-94
Number of pages6
JournalJournal of Lightwave Technology
Issue number1
Publication statusPublished - 2015 Jan 1

Bibliographical note

Publisher Copyright:
© 2014 IEEE.

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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