矩形晶格高偏振、低损耗铋锗镓光子晶体光纤的结构设计及性能分析

谭芳; 杨强; 霍慕逸; 周晶; 周德春; 许鹏飞

doi:10.11884/HPLPB202133.210128

矩形晶格高偏振、低损耗铋锗镓光子晶体光纤的结构设计及性能分析

doi: 10.11884/HPLPB202133.210128

1.
长春大学理学院，长春 130000
2.
长春理工大学材料科学与工程学院，长春 130000

基金项目: 吉林省教育厅“十三五”科学技术项目（JJKH20200565KJ）；吉林省科技厅项目（20200401053GX）

详细信息

作者简介:
谭　芳，280267488@qq.com

中图分类号: O436
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- 被引次数: 0
出版历程
- 收稿日期: 2021-04-02
- 修回日期: 2021-09-15
- 网络出版日期: 2021-10-08
- 刊出日期: 2021-10-15

Structural design and properties study of rectangular lattice high polarization low-loss-Bi-Ge-Ga photonic crystal fiber

1.
School of Science, Changchun University, Changchun 130000, China
2.
School of Material Science and Engineering, Changchun University of Science and Technology, Changchun 130000, China

摘要

摘要: 非对称结构光子晶体光纤应用广泛。其良好的偏振特性、灵活的色散调控能力以及低限制损耗品质，对于优化与改善偏振光纤器件、非线性光学光纤、光通信光纤、光纤传感器等性能发挥着关键的作用。选用高折射率铋锗镓激光玻璃为材料，设计了八边形阵列、矩形晶格排列的光子晶体光纤，纤芯缺陷区包层及外包层均为圆形空气孔。模拟实验数据显示，结构参数为M=0.5，0.6时，在波长为1.55 μm处的双折射系数分别为1.16×10⁻²和1.33×10⁻²；在近红外波段短波区，矩形晶格结构光子晶体光纤的色散范围分别在±30 ps·nm⁻¹·km⁻¹之间及−18～32 ps·nm⁻¹·km⁻¹之间。色散斜率较低，曲线具有零色散点，展现了良好的连续谱调控能力；在1.00～1.90 μm波段内，当M=0.5，0.6时，光纤限制损耗稳定在10⁻⁷～10⁻⁹ dB·km⁻¹之间；在1.55 μm处，限制损耗测量值分别为2.32×10⁻⁷和1.62×10⁻⁸ dB·km⁻¹。
- 矩形晶格 /
- 铋锗镓激光玻璃 /
- 双折射 /
- 色散特性 /
- 限制损耗
Abstract: Asymmetric structure photonic crystal fibers are widely used. Its good polarization characteristics, flexible dispersion control ability and low limit loss quality play a key role in regulating and improving the performance of polarization fiber devices, nonlinear optical fibers, optical communication fibers, and fiber sensors. In this paper, high refractive index bismuth-germanium-gallium laser glass material is used and a photonic crystal fiber with an octagonal array and a rectangular lattice arrangement structure is designed. The core defect area cladding and outer cladding are all circular air holes. The simulation experiment data show that when the structural parameter M=0.5 and 0.6, the birefringence coefficients at the wavelength of 1.55 μm are 1.16×10⁻² and 1.33×10⁻², respectively; In the short-wave region of the near-infrared band, the dispersion range of rectangular lattice photonic crystal fiber is ±30 ps·nm⁻¹·km⁻¹ and −18−32 ps·nm⁻¹·km⁻¹, respectively. The dispersion slope is low. The dispersion curve has a zero dispersion point, which demonstrates good continuous spectrum control ability; When M=0.5, 0.6, in the band of 1.00−1.90 μm, the limit loss keeps in 10⁻⁷−10⁻⁹ dB·km⁻¹ stably; At the wavelength of 1.55 μm, the limit loss are 2.32×10⁻⁷ and 1.62×10⁻⁸ dB·km⁻¹, respectively.
- rectangular lattice /
- Bi-Ge-Ga laser glass /
- double refraction /
- chromatic dispersion /
- limit loss

HTML全文

图 1 八边形矩形晶格结构

Figure 1. Structure of octagon rectangular lattice

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图 2 六边形三角晶格结构

Figure 2. Structure of hexagon triangular lattice

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图 3 BGRL-PCF的断面结构以及模场图

Figure 3. Section structure and mode field of BGRL-PCF

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图 4 BGTL-PCF的断面图以及模场图

Figure 4. Section structure and mode field of BGTL-PCF

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图 5 PCF的折射率曲线

Figure 5. n_eff (λ) curve of PCF

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图 6 光子晶体光纤的双折射系数曲线

Figure 6. Birefringence coefficient curves of PCFs

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图 7 光子晶体光纤的色散特性曲线

Figure 7. Dispersion characteristics curves of PCFs

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图 8 不同结构光子晶体光纤的限制损耗曲线

Figure 8. Limiting loss curves of PCF with different structures

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图 9 2种特定波长限制损耗曲线

Figure 9. Limited loss curves with two specific wavelength

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图 10 x/y偏振态功率密度与波长关系

Figure 10. Relationship between power density and wavelength of x/y polarization state

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