Liquid crystal photonic bandgap fiber: different bandgap transmissions at different temperature ranges.
Liquid crystal photonic bandgap fiber: different bandgap transmissions at different temperature ranges.
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DOI：
10.1364/ao.47.005321
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发表时间：
2008-10
期刊：
影响因子：
1.9
通讯作者：
Jiangbing Du;Yan-ge Liu;Zhi Wang;Bing Zou;Bo Liu;Xiaoyi Dong
中科院分区：
文献类型：
--
作者：
Jiangbing Du;Yan-ge Liu;Zhi Wang;Bing Zou;Bo Liu;Xiaoyi Dong
研究了液晶光子带隙光纤带隙传输的温度调谐特性。由于液晶折射率的特殊温度响应和液晶的相变特性，在液晶的清亮点温度以下的不同温度范围内，带隙透射率具有不同的温度响应。在低于或高于LC的清除点的温度下，带隙传输是完全不同的，这允许以高达45 dB的消光比切换。在LC的清亮点附近的温度下，带隙传输被抑制。
The temperature tuning properties of a liquid crystal (LC) photonic bandgap fiber's bandgap transmission was investigated in this study. Because of the special temperature responses of the LC's indices and its phase transition property, the bandgap transmission was found to have different temperature responses at different temperature ranges below the LC's clearing point temperature. At temperatures lower or higher than the LC's clearing point, the bandgap transmissions are quite different, which permits switching with an extinction ratio as large as 45 dB. At temperatures around the LC's clearing point, the bandgap transmission was depressed.