光学学报, 2019, 39 (3): 0306004, 网络出版: 2019-05-10
基于光纤布拉格光栅拉锥的带宽可调微光纤马赫-曾德尔干涉仪 下载: 1167次
Bandwidth Tunable Microfiber-Assisted Mach-Zehnder Interferometer Based on Tapered-Drawing Fiber Bragg Grating
图 & 表
图 1. 氢氧焰熔融拉锥实验装置原理图
Fig. 1. Schematic of experimental setup for fused tapering by hydrogen oxygen flame
图 6. MZI在不同质量浓度的NaCl溶液下的透射光谱图。(a) 1%; (b) 5.76%; (c) 7.88%; (d) 10.16%; (e) 13.11%; (f) 16.22%
Fig. 6. Transmission spectra of MZI under different NaCl solution concentrations. (a) 1%; (b) 5.76%; (c) 7.88%; (d) 10.16%; (e) 13.11%; (f) 16.22%
图 7. 不同NaCl溶液质量浓度下的透射谱
Fig. 7. Transmission spectra under different solution concentrations of NaCl
图 8. 带宽与折射率的关系曲线与线性拟合曲线
Fig. 8. Relationship between bandwidth and refractive index as well as its corresponding linear fitting curve
图 9. 4种假设结构的透射谱。(a)拉锥光栅实验及仿真透射谱; (b)当SMF拉锥长度为0, 19.831, 22.244 mm时的透射谱; (c)较长栅区FBG拉锥前后的反射谱; (d) LPG-SMF-LPG仿真透射谱
Fig. 9. Transmission spectra of four hypothetical structures. (a) Simulated and experimental transmission spectra of tapered-drawing fiber grating; (b) transmission spectra of SMF with tapering lengths of 0, 19.831, 22.244 mm; (c) reflectance spectra of long grating FBG before and after tapering; (d) simulated transmission spectrum of LPG-SMF-LPG
耿健, 朱晓军, 章国安, 徐晨, 季彦呈, 金丽, 曹娟. 基于光纤布拉格光栅拉锥的带宽可调微光纤马赫-曾德尔干涉仪[J]. 光学学报, 2019, 39(3): 0306004. Jian Geng, Xiaojun Zhu, Guoan Zhang, Chen Xu, Yancheng Ji, Li Jin, Juan Cao. Bandwidth Tunable Microfiber-Assisted Mach-Zehnder Interferometer Based on Tapered-Drawing Fiber Bragg Grating[J]. Acta Optica Sinica, 2019, 39(3): 0306004.