光学学报, 2021, 41 (4): 0413001, 网络出版: 2021-02-26
基于纳米线波导和一维光子晶体纳米梁腔的模分-波分混合解复用器 下载: 1172次
Hybrid Demultiplexer for Mode-Wavelength Division Based on Nanowire Waveguides and One-Dimensional Photonic Crystal Nanobeam Cavity
图 & 表
图 3. 理论模型透射谱。(a)各端口的理论透射谱;(b)反射谱的局部放大图
Fig. 3. Transmission spectra of theoretical model. (a) Theoretical transmission spectra of each port; (b) local magnification of reflection spectrum
图 4. 模分-波分混合解复用器的三维结构示意图
Fig. 4. Three-dimensional structural diagram of MDM-WDM hybrid demultiplexer
图 5. 一维光子晶体纳米梁腔的结构参数和稳态场分布。(a)结构示意图;(b)微腔区域的圆孔半径分布;(c)谐振腔模式的稳态场分布
Fig. 5. Structural parameters and static field distribution of one-dimensional photonic crystal nanobeam cavity. (a) Structural diagram; (b) hole radius distribution in microcavity area; (c) static field distribution of resonant cavity mode
图 6. 波分解复用器结构图。(a)三维;(b)二维
Fig. 6. Structural diagrams of WDM demultiplexer. (a) Three-dimensional; (b) two-dimensional
图 7. 波分解复用器透射谱。(a)各端口透射谱;(b)透射谱局部放大图
Fig. 7. Transmission spectra of WDM demultiplexer. (a) Transmission spectrum at each port; (b) enlarge views of transmission spectra
图 8. 不同入射光在波分解复用过程中的稳态场分布。(a) 1570.0 nm;(b) 1573.2 nm
Fig. 8. Static field distributions of different incident light in WDM demultiplexing process. (a) 1570.0 nm; (b) 1573.2 nm
图 9. 波分解复用器性能与Δr的关系。(a)各个波长的插入损耗随Δr的变化;(b)各个波长的信道串扰随Δr的变化
Fig. 9. Relationship between performance of WDM demultiplexer and Δr. (a) Insertion loss at each wavelength versus Δr; (b) channel crosstalk at each wavelength versus Δr
图 10. 模分解复用器的结构参数和透射谱。(a)纳米线波导的有效折射率图;(b)三维结构图;(c)三维结构侧视图;(d)透射谱;(e)不同模式转换图
Fig. 10. Structural parameters and transmission spectra of MDM demultiplexer. (a) Effective refractive index map of nanowire waveguides; (b) three-dimensional structural diagram; (c) side view of three-dimensional structure; (d) transmission spectra; (e) different mode conversion diagrams
图 11. 模分解复用器性能与Lc的关系。(a)各个模式的插入损耗随Lc的变化;(b)各个模式的信道串扰随Lc的变化
Fig. 11. Relationship between performance of MDM demultiplexer and Lc. (a) Insertion loss of each mode versus Lc; (b) channel crosstalk of each mode versus Lc
图 12. 解复用过程中端口O3和O4处的透射谱。(a)圆孔未微调;(b)圆孔微调
Fig. 12. Transmission spectra of ports O3 and O4 in demultiplexing process. (a) Hole is not fine-tuned; (b) hole is fine-tuned
图 13. 解复用过程中各个模式的透射谱。(a) TE0;(b) TE1
Fig. 13. Transmission spectra of each mode in demultiplexing process. (a) TE0; (b) TE1
表 1各个模式的插入损耗
Table1. Insertion loss of each mode
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表 2各个模式的信道串扰
Table2. Channel crosstalk of each mode
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潘万乐, 陈鹤鸣, 庄煜阳, 胡宇宸. 基于纳米线波导和一维光子晶体纳米梁腔的模分-波分混合解复用器[J]. 光学学报, 2021, 41(4): 0413001. Wanle Pan, Heming Chen, Yuyang Zhuang, Yuchen Hu. Hybrid Demultiplexer for Mode-Wavelength Division Based on Nanowire Waveguides and One-Dimensional Photonic Crystal Nanobeam Cavity[J]. Acta Optica Sinica, 2021, 41(4): 0413001.