Thermal memory effect in polymer optical fibers
Thermal memory effect in polymer optical fibers
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聚合物光纤的热记忆效应
DOI：
10.1109/lpt.2015.2421950
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
and K. Nakamura
中科院分区：
文献类型：
--
作者：
K. Minakawa;N. Hayashi;Y. Mizuno;and K. Nakamura
实验研究了聚合物光纤(POF)热记忆效应的基本特性。我们测量了几种高温下的热致损耗随时间的变化，发现当加热到~200时，S的热损几乎是恒定的，即使在被加热的部分冷却到室温后，损耗也保持不变。随后，我们在三种不同的条件下测量了POF段的光反射轨迹：1)在POF段被加热之前；2)POF段被高温加热后不久；以及3)被加热段冷却到室温之后。在2)和3)下测得的轨迹基本一致，这表明热记忆效应可以在今后开发过热探测系统时加以利用。
The basic properties of a thermal memory effect of polymer optical fibers (POFs) are experimentally investigated. We measure the thermally induced loss as a function of time at several high temperatures, and find that the loss becomes almost constant after heating for ~200 s. The loss remains unchanged even after the heated section is cooled to room temperature. We subsequently measure the optical time-domain reflectometry traces under three different conditions: 1) before a POF section is heated; 2) shortly after the POF section is heated at high temperature; and 3) after the heated section is cooled to room temperature. The traces measured under 2) and 3) are moderately identical, which indicates that the thermal memory effect can be exploited in developing excess-heat detecting system in future.