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像Kovacs这样的记忆效应介导的纤维布拉格格子:类似于石
Qiaochu Yang1,2, Zhiyuan Xu1,2, Xu Yue1,2
1Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou, China.
Nature communications
|July 7, 2025
概括
这项研究介绍了一种使用光纤布拉格格 (FBGs) 进行数据存储的"光学基浦". 这些FBG记录了热历史和数据,提供了一个新的1D光子记忆技术.
科学领域:
- 光子学和材料科学 材料科学
- 光学工程是指光学工程.
- 数据存储技术 数据存储技术
背景情况:
- 古代文明使用物理方法,如石雕和千浦结,来保存信息.
- 现代光纤虽然在电信方面已经很先进,但在长期存储档案数据方面还基本未被探索.
- 纤维布拉格网格 (FBG) 通常用于传感和电信,而不是作为存储器件.
研究的目的:
- 探索用于光学数据存储的新型纤维布拉格格 (FBG) 配置.
- 为了档案目的,研究FBG中热可编程记忆效应的潜力.
- 开发一种1D光子记忆技术,其灵感来源于古老的奇普信息存储.
主要方法:
- 设计了一种具有温度依赖的光谱特征的双浸FBG架构.
- 利用受控的热来诱导有限的光谱调和不可逆转的光谱变化.
- 采用一种类似于科瓦克斯记忆效应的光诱导应力机制,用于数据写入.
- 证明了用于同时记录热史和数据存储的多重波长编码.
主要成果:
- 在工程 FBG 中实现了热可编程的内存效果.
- 通过受控和光诱导应力成功证明了不可逆转的光谱变化.
- 双入FBG架构使数据存储的多重波长编码成为可能.
- 验证了FBG作为热历史记录器和激光可写的数据介质的能力.
结论:
- 开发的FBG配置成功实现了光学数据存储与内存效果.
- 这种"光学基浦"概念代表了对一维光子记忆技术的新方法.
- 这些发现为在先进的信息存储应用中利用光纤开辟了新的途径.
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