基于弯曲不敏感空芯光纤的波分复用光纤耦合器。

Wavelength-division-multiplexing fiber coupler based on bending-insensitive holey optical fiber.

机构信息

Department of Information and Communications, Gwangju Institute of Science and Technology, 261 Cheomdan-gwagiro, Buk-gu, Gwangju 500-712, South Korea.

出版信息

Opt Lett. 2010 Aug 15;35(16):2726-8. doi: 10.1364/OL.35.002726.

DOI:10.1364/OL.35.002726

PMID:20717437

Abstract

A wavelength-division-multiplexing (WDM) coupler has been made with a bending-insensitive holey optical fiber (HOF) by using the fused biconical tapered (FBT) method. The transmission band of the proposed HOF WDM coupler could be easily tuned by adjusting the pulling length during the FBT process. Interestingly, it was observed that the air-hole structure of the HOF should be maintained to have the property of a WDM coupler. As the air holes collapse, the HOF WDM exhibits high-pass-filter-like properties. The cross-sectional scanning electron microscope images of the implemented HOF WDM coupler are presented along with the light intensity distribution measured at the coupling region of the coupler. The proposed HOF couplers may also find applications in optical coarse WDM systems and optical fiber sensors.

摘要

通过使用熔锥型光纤（FBT）方法，制造了一种具有弯曲不敏感空芯光纤（HOF）的波分复用（WDM）耦合器。通过调整 FBT 过程中的拉伸长度，可以轻松调节所提出的 HOF WDM 耦合器的传输带宽。有趣的是，观察到 HOF 的空气孔结构应保持不变，以具有 WDM 耦合器的性能。随着空气孔的塌陷，HOF WDM 表现出高通滤波器样的特性。还给出了实现的 HOF WDM 耦合器的横截面扫描电子显微镜图像以及在耦合器的耦合区域测量的光强分布。所提出的 HOF 耦合器也可能在光学粗波分复用系统和光纤传感器中找到应用。