光学学报, 2021, 41 (1): 0106001, 网络出版: 2021-02-23
空分复用光纤放大器增益均衡技术研究进展 下载: 1598次特邀综述
Review on Gain Equalization Technology of Fiber Amplifier Using Space Division Multiplexing
图 & 表
图 7. 双模光纤传输系统[20]。(a)结构图;(b)掺铒光纤折射率差分布
Fig. 7. Two-mode fiber transmission system[20]. (a) Structural diagram; (b) refractive index difference profile of erbium-doped fiber
图 8. 环芯光纤折射率分布及各模式模场分布[22]
Fig. 8. Refractive index profile and mode field distributions of ring core fiber[22]
图 9. 不同结构的环芯光纤。(a)带沟槽的环芯光纤折射率分布及掺杂结构[25];(b)环芯掺铒光纤截面[26]
Fig. 9. Ring-core fibers with different structures. (a) Refractive index distribution and doping structure of ring-core fiber with trench[25]; (b) cross section of ring core erbium-doped fiber[26]
图 11. 掺杂剖面设计。(a)单层掺杂[27];(b)相同掺杂浓度的多层掺杂[28];(c)不同掺杂浓度的多层掺杂[29]
Fig. 11. Doping profile designs. (a) Monolayer doping[27]; (b) multilayer doping with the same doping concentration[28]; (c) multilayer doping with different doping concentrations[29]
图 12. 不同的多芯单模光纤。(a)12芯铒镱共掺双包层光纤[30];(b)环形包层泵浦多芯掺铒光纤[31]
Fig. 12. Different multi-core single-mode fibers. (a) 12-core erbium-ytterbium co-doped double-cladding fiber[30]; (b) annular cladding-pumped multi-core erbium-doped fiber[31]
图 13. 混合泵浦MC-EDFA结构示意图[34]。(a)单级;(b)多级
Fig. 13. Schematic diagram of MC-EDFA with hybrid pumping[34]. (a) Single-stage; (b) multi-stage
图 14. 双包层六芯三模光纤截面及折射率分布[16]
Fig. 14. Cross section and refractive index distribution of double-cladding six-core three-mode fiber[16]
裴丽, 李祉祺, 王建帅, 解宇恒, 郑晶晶, 李晶, 宁提纲. 空分复用光纤放大器增益均衡技术研究进展[J]. 光学学报, 2021, 41(1): 0106001. Li Pei, Zhiqi Li, Jianshuai Wang, Yuheng Xie, Jingjing Zheng, Jing Li, Tigang Ning. Review on Gain Equalization Technology of Fiber Amplifier Using Space Division Multiplexing[J]. Acta Optica Sinica, 2021, 41(1): 0106001.