激光与光电子学进展, 2019, 56 (5): 050602, 网络出版: 2019-07-31
负曲率空芯光纤限制损耗的影响因素 
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Influence Factors of Confinement Loss of Negative Curvature Hollow Core Fiber
图 & 表
图 2. 负曲率空芯光纤中模式的电场模。(a)基模; (b)管模
Fig. 2. Electric field mode in negative curvature hollow core fiber. (a) Fundamental mode; (b) tube mode
图 3. 单层4管环负曲率空芯光纤的结构
Fig. 3. Structure of single layer four tubes negative curvature hollow core fiber
图 4. 不同管环壁厚下基模的有效折射率
Fig. 4. Effective refractive index of fundamental mode at different tube thicknesses
图 6. 不同管环壁厚下基模的限制损耗
Fig. 6. Confinement loss of fundamental mode at different tube thicknesses
图 7. 单层4管环负曲率空芯光纤中基模和管模的有效折射率
Fig. 7. Effective refractive index of fundamental mode and tube mode in single layer four tubes negative curvature hollow core fiber
图 8. 单层4管环负曲率空芯光纤中基模的功率占比
Fig. 8. Power ratio of fundamental mode in single layer four tubes negative curvature hollow core fiber
图 9. 单层4管环负曲率空芯光纤中基模的限制损耗
Fig. 9. Confinement loss of fundamental mode in single layer four tubes negative curvature hollow core fiber
图 10. 纤芯直径为20 μm时不同管环直径下基模的限制损耗
Fig. 10. Confinement loss of fundamental mode at different tube diameters with 20 μm core diameter
图 12. 负曲率空芯光纤。(a)两层嵌套4管环;(b)三层嵌套4管环
Fig. 12. Negative curvature hollow core fibers. (a) Two layers four tubes with nested tubes; (b) three layers four tubes with nested tubes
图 13. 两层嵌套4管环负曲率空芯光纤基模的限制损耗
Fig. 13. Confinement loss of fundamental mode in two layers four tubes negative curvature hollow core fiber with nested tubes
图 14. 两层嵌套4管环负曲率空芯光纤基模的功率占比
Fig. 14. Power ratio of fundamental mode in two layers four tubes negative curvature hollow core fiber with nested tubes
图 15. 两层嵌套4管环负曲率空芯光纤中基模功率占比随嵌套环之间空气层厚度的变化
Fig. 15. Variation of power ratio of fundamental mode with thickness of air layer in two layers four tubes negative curvature hollow core fiber with nested tubes
图 17. 单层环、两层嵌套和三层嵌套4管环负曲率空芯光纤中基模的限制损耗
Fig. 17. Confinement loss of fundamental mode in single layer,two layers and three layers four tubes negative curvature hollow core fibers
图 18. 负曲率空芯光纤中基模的功率占比
Fig. 18. Power ratio of fundamental mode in negative curvature hollow core fibers
图 19. 三层嵌套4管环负曲率空芯光纤中基模限制损耗随嵌套环之间空气层厚度的变化
Fig. 19. Variation of confinement loss of fundamental mode with thickness of air layer in three layers four tubes negative curvature hollow core fiber with nested tubes
表 1负曲率空芯光纤的模式有效折射率与限制损耗
Table1. Mode effective index and confinement loss of negative curvature hollow core fiber
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表 2负曲率空芯光纤的结构容错性
Table2. Structural fault tolerance of negative curvature hollow core fiber
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陈翔, 胡雄伟, 李进延. 负曲率空芯光纤限制损耗的影响因素[J]. 激光与光电子学进展, 2019, 56(5): 050602. Xiang Chen, Xiongwei Hu, Jinyan Li. Influence Factors of Confinement Loss of Negative Curvature Hollow Core Fiber[J]. Laser & Optoelectronics Progress, 2019, 56(5): 050602.
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