Inside Cover, Volume 49, Issue 20


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On page 1464, M. Asai, Y. Yamaki, S. Takahashi, and Y. Koike present the fabrication of PMMA–BPT based graded index plastic optical fibers (GI-POFs) with low attenuation and high thermal stability for vehicle networks. The thermal stability of the GI-POFs is demonstrated to be as high as that of the commercially available step index POF. Moreover, the theoretical −3 dB bandwidth of the GI-POF could be estimated at over 4.0 GHz for the 50 m fiber. This novel GI-POF is shown to significantly increase the transmission speed of the networks.