Imamura Katsunori, Tsuchida Yukihiro, Mukasa Kazunori, Sugizaki Ryuichi, Saitoh Kunimasa, Koshiba Masanori
Fitel Photonics laboratory, Furukawa Electric Co, Ltd, 6, Yawata-kaigandori, Ichihara, Chiba 290-8555, Japan.
Opt Express. 2011 May 23;19(11):10595-603. doi: 10.1364/OE.19.010595.
To realize large effective area (Aeff) multi-core fibers (MCFs), the design to suppress the cross-talk and the influence of the cladding diameter on the micro bending loss were investigated. As a result, the MCFs with large Aeff over 100 μm(2) and low micro bending loss were successfully fabricated. The results indicate the importance of fiber design to realize large Aeff MCFs including fiber diameters, which largely affect the micro bending loss property. Additionally, MCF with large Aeff, low attenuation loss and suppressed cross-talk was successfully realized by optimizing the fiber design. The cross-talk properties could be estimated by the simulation based on the coupling power theory taking the influences of the longitudinal fluctuation of core diameter into account.
为了实现大有效面积（Aeff）的多芯光纤（MCF），研究了抑制串扰的设计以及包层直径对微弯损耗的影响。结果，成功制造出了有效面积超过100μm²且微弯损耗低的多芯光纤。结果表明，光纤设计对于实现大有效面积多芯光纤非常重要，包括光纤直径，其对微弯损耗特性有很大影响。此外，通过优化光纤设计，成功实现了具有大有效面积、低衰减损耗和抑制串扰的多芯光纤。串扰特性可以通过基于耦合功率理论的模拟来估计，同时考虑纤芯直径纵向波动的影响。
