论文部分内容阅读
提出了一种新型双空气孔多芯-双模-大模场面积光纤结构,计算了其模场分布、基模有效面积及弯曲损耗特性,分析了各结构参量对其有效折射率及有效面积的影响.这种结构在增大有效面积的同时使得二阶模的TE01,TM01模截止,实现双模传输,基模有效面积约为1044μm2.调整其结构参量,甚至可以达到单模传输.这种结构制作简单、设计灵活,可用于高速大容量无源光纤及有源器件中.合理设计各结构参量,可以使有效面积达到3512μm2甚至更高,从而满足光通信领域中大容量、高功率传输等实际应用的需求.
A novel double air-core multi-core-dual mode-large mode field area optical fiber structure is proposed. The mode field distribution, the effective area of the fundamental mode and the bending loss characteristics are calculated. The influence of each structure parameter on the effective refractive index and effective area This structure increases the effective area and at the same time makes the TE01 and TM01 modes of the second-order mode cut off, realizing the dual-mode transmission, the effective area of the fundamental mode is about 1044μm2. The structural parameters can be adjusted and even the single mode transmission can be achieved. With simple structure design and flexible design, it can be used in high-speed and large-capacity passive optical fiber and active devices. The reasonable design of each structure parameter can achieve an effective area of 3512μm2 or higher, so as to meet the requirements of large-capacity and high-power transmission in optical communications And other practical needs.