Acta Optica Sinica, Volume. 38, Issue 10, 1006002(2018)
Low-Loss Fusion Splice of Hollow-Core Anti-Resonant Fiber and Single Mode Fiber
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.
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Xiaoqian Li, Shoufei Gao, Yingying* Wang, Pu Wang. Low-Loss Fusion Splice of Hollow-Core Anti-Resonant Fiber and Single Mode Fiber[J]. Acta Optica Sinica, 2018, 38(10): 1006002
Category: Fiber Optics and Optical Communications
Received: Apr. 2, 2018
Accepted: May. 8, 2018
Published Online: May. 9, 2019
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