摘要

光子晶体光纤因具有设计自由、导光机制新颖等优势而被人们广泛关注。相比于带隙型光子晶体光纤和Kagome光纤，空芯反谐振光纤(HC-ARF)由于具有结构简单、单模导光、传输谱宽且损耗低的特点，在紫外/中红外光传输、高功率激光产生、非线性光学及传感等领域都具有很好的应用。但是HC-ARF要真正得到广泛应用，其与普通单模光纤的熔接必须简便且损耗低，然而，HC-ARF包层特殊的毛细管孔结构在熔接过程中容易坍塌，且其模场直径不同于普通单模光纤，故直接熔接时损耗很大。为此，引入一段纤芯直径为20 μm的实芯大模场光纤作为模场过渡，实现了HC-ARF和普通单模光纤之间的熔接，熔接损耗由直接熔接的3 dB降至0.844 dB。

Abstract

Photonic crystal fibers have attracted intensive attention because of its advantages of a freedom design and a novel light guiding mechanism. Compared with photonic bandgap fibers and Kagome fibers, the hollow-core anti-resonant fibers (HC-ARF) exhibit excellent optical properties in terms of simple structure, single mode transmission, broad transmission bandwidth and low optical attenuation. HC-ARF is suitable for UV/mid-IR light transmission, high power laser generation, nonlinear optics, sensing and so on. However, in order for HC-ARF to be widely used, the fusion of HC-ARF and a conventional single-mode fiber must be simple and low-loss. While, because the special cladding capillaries of HC-ARF are easily destroyed during splicing, and the mode field of HC-ARF is different with single mode fiber, the direct splicing technique easily leads to a large loss. So we use a solid-core large mode area fiber with a core diameter of 20 μm as an intermediate, to obtain a low-loss fusion splice between a HC-ARF and a conventional single mode fiber. Compared to the direct splicing technique, which yields a splice loss of 3 dB, the intermediate fiber technique makes the overall insertion loss decrease to 0.844 dB.

补充资料

中图分类号：TN252

DOI：10.3788/aos201838.1006002

所属栏目：光纤光学与光通信

基金项目：国家自然科学基金(10101999201602)

收稿日期：2018-04-02

修改稿日期：2018-04-28

网络出版日期：2018-05-08

作者单位    点击查看

联系人作者：汪滢莹(wangyingying@bjut.edu.cn)

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引用该论文

Li Xiaoqian,Gao Shoufei,Wang Yingying,Wang Pu. Low-Loss Fusion Splice of Hollow-Core Anti-Resonant Fiber and Single Mode Fiber[J]. Acta Optica Sinica, 2018, 38(10): 1006002

李晓倩,高寿飞,汪滢莹,王璞. 空芯反谐振光纤与单模光纤的低损耗熔接研究[J]. 光学学报, 2018, 38(10): 1006002