低损耗LC型多芯光纤连接器的优化设计

Optimal Design of Low Loss Lc Multi-core Optical Fiber Connector

空分复用的多芯光纤被广泛应用于光互连中,多芯光纤连接器的性能将直接影响多芯光纤的应用。设计新型八芯LC型光纤连接器,运用仿真分析了纤芯间距、沟槽宽度、波长等参数对八芯光纤传输性能的影响规律,仿真结果验证了所设计的八芯光纤的可行性。通过实验优化制备工艺,使得制备的八芯光纤连接器达到了±0.1°范围内的旋转对准精度,并实现平均插入损耗为0.13 dB,回波损耗为56.08 dB,在经过多次重复性和互换性测试后,附加损耗小于0.2 dB,保持了光纤连接器性能的稳定,且与传统单模光纤连接器相比,具有较低的损耗以及更高的通信容量。

Multi-core fiber with space division multiplexing is widely used in optical interconnection,and the performance of multi-core fiber connector will directly affect the application of multi-core fiber.In this paper,a new eight-core LC optical fiber connector was designed,and simulation analysis was conducted to investigate the influence of parameters such as fiber core spacing,groove width,and wavelength on the transmission performance of eight-core optical fibers.The feasibility of the designed eight-core optical fiber was verified through simulation results.Subsequently,the experimental preparation process was optimized,leading to the prepared eight-core optical fiber connector achieving rotational alignment accuracy within the range of±0.1°,with an average insertion loss of 0.13dB and a return loss of 56.08dB.After undergoing multiple repeatability and interchangeability tests the additional loss was less than 0.2dB,indicating stable performance of the optical fiber connector.Compared with traditional single mode fiber connectors,the eight-core optical fiber connector had lower loss and higher communication capacity.