Directional coupling in a twin core photonic crystal fiber using heat treatment
Directional coupling in a twin core photonic crystal fiber using heat treatment
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DOI：
10.1109/cleo.2001.948212
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发表时间：
2001-05
期刊：
影响因子：
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通讯作者：
G. Kakarantzas;B. Mangan;T. Birks;J. Knight;P. Russell
中科院分区：
文献类型：
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作者：
G. Kakarantzas;B. Mangan;T. Birks;J. Knight;P. Russell
仅给出摘要表格。多芯光纤是具有两芯或多芯的光纤。根据光纤的特性，纤芯可以耦合或解耦合。光子晶体光纤 (PCF) 是一种未掺杂的全石英光纤，具有沿其长度延伸的气孔阵列。这种新型光纤具有一些显着的波导特性，可以通过气孔的尺寸和气孔之间的距离来表征。 PCF 采用经过验证的堆叠和拉制技术制造，由于这种独特的制造工艺，在二维六角晶格内的任何位置包含多个纤芯，比传统阶跃折射率光纤的制造要简单得多。在本文中，我们通过选择性热处理先前未耦合的双芯 PCF 的区域来演示渐逝场耦合器。
Summary form only given. Multicore fibers are optical fibers with two or more cores. The cores can be coupled or uncoupled depending on the properties of the fiber. Photonic crystal fiber (PCF) is an undoped all silica fiber with an array of air holes that run along its length. This novel type of optical fiber has some remarkable waveguiding properties that can be characterized by the size of the air holes and the distance between them. PCF is fabricated using a proven stack and draw technique, due to this unique fabrication process the inclusion of multiple cores, anywhere within the two-dimensional hexagonal lattice is significantly simpler than the fabrication of conventional step index fibers. In this paper we demonstrate an evanescent field coupler by selective heat-treating a region of a previously uncoupled twin core PCF.