(IMAGE)

Yokohama National University

Caption

This figure illustrates the result of distributed temperature sensing using a perfluorinated graded-index plastic optical fiber (POF). The top diagram shows the structure of the sensing POF, including a 7.0-centimeter cooled section. The lower plot presents the measured Brillouin frequency shift distribution along the POF, clearly indicating the temperature change in the cooled region.

Credit

Yokohama National University

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