中国激光, 2018, 45 (11): 1106005, 网络出版: 2018-11-15
基于数字图像的保偏光纤与Y型波导耦合损耗分析 
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Coupling Loss Analysis Between Polarization Maintaining Fiber and Y-Waveguide Based on Digital Image
图 & 表
图 1. 光纤-Y型波导输入端对准耦合模型
Fig. 1. Alignment coupling model of fiber and input end of Y-waveguide
图 2. 模场仿真图。(a)光纤,1550 nm;(b)波导,1550 nm;(c)光纤,650 nm;(d)波导,650 nm
Fig. 2. Simulation diagrams of mode field. (a) Fiber, 1550 nm; (b) waveguide, 1550 nm; (c) fiber, 650 nm; (d) waveguide, 650 nm
图 3. 光纤-波导对准耦合实验平台示意图
Fig. 3. Schematic of experimental platform of alignment coupling between fiber and waveguide
图 4. 实验采集图像。(a)耦合点侧面图像;(b) Y型波导输出光点图像;(c)调节光强后输出图像
Fig. 4. Experimental images. (a) Side image of coupling point; (b) output image of Y-waveguide; (c) output image after adjusting light intensity
图 5. 输出光点红色通道值分布图。(a)横向;(b)纵向
Fig. 5. Distributions of red channel values of output point. (a) Horizontal position; (b) vertical position
图 6. 耦合损耗与横向位错关系曲线。(a)横向位错X;(b)横向位错Y
Fig. 6. Relation curves between coupling loss and transverse misalignment. (a) Transverse misalignment X; (b) transverse misalignment Y
图 8. 偏转角α下光纤与Y型波导对准耦合模型
Fig. 8. Alignment coupling model of fiber and Y-waveguide under deflection angle α
图 9. 耦合损耗与角度偏转关系曲线。(a)偏转角α;(b)俯仰角β
Fig. 9. Relation curves between coupling loss and angle deflection. (a) Deflection angle α; (b) pitch angle β
李亮, 宋凝芳, 冯迪, 张春熹. 基于数字图像的保偏光纤与Y型波导耦合损耗分析[J]. 中国激光, 2018, 45(11): 1106005. Li Liang, Song Ningfang, Feng Di, Zhang Chunxi. Coupling Loss Analysis Between Polarization Maintaining Fiber and Y-Waveguide Based on Digital Image[J]. Chinese Journal of Lasers, 2018, 45(11): 1106005.
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