具有立体棒状微纤维-空气结构的小型化宽带高双折射器件。

Miniaturized broadband highly birefringent device with stereo rod-microfiber-air structure.

作者信息

Kou Jun-long, Chen Ye, Xu Fei, Lu Yan-qing

机构信息

National Laboratory of Solid State Microstructures and College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China.

出版信息

Opt Express. 2012 Dec 17;20(27):28431-6. doi: 10.1364/OE.20.028431.

DOI:10.1364/OE.20.028431

PMID:23263078

Abstract

A wrapping-on-a-rod technique is presented and demonstrated successfully to realize broadband microfiber-based highly birefringent (Hi-Bi) devices with 3D geometry. By wrapping a circular microfiber (MF) on a Teflon-coated rod (2 mm in diameter), a large and broadband birefringence can be obtained utilizing a rod-microfiber-air (RMA) structure. Wavelength scanning method is used to measure the birefringence of the device. Results show that group birefringence as high as 10(-3) can be achieved over 400 nm wavelength range. This compact element presents great potential in sensing and communication applications, as well as lab-on-a-rod devices.

摘要

本文提出并成功演示了一种基于棒上缠绕技术的三维几何结构宽带微光纤高双折射（Hi-Bi）器件。通过将圆形微光纤（MF）缠绕在直径为2毫米的涂有特氟龙的棒上，利用棒-微光纤-空气（RMA）结构可获得大的宽带双折射。采用波长扫描法测量器件的双折射。结果表明，在400纳米波长范围内可实现高达10^(-3)的群双折射。这种紧凑的元件在传感、通信应用以及棒上实验室设备中具有巨大潜力。