长周期光纤光栅的级联光谱特性研究
Study on Cascaded Spectral Characteristics of Long Period Fiber Gratings
摘要: 基于耦合模理论利用传输矩阵法研究级联长周期光纤光栅(Cascaded Long Period Fiber Gratings, CLPG)的光谱特性。结果表明：选用两个参数相近的长周期光纤光栅(Long Period Fiber Gratings, LPG)级联可以获得更明显的透射谱。周期的增加导致损耗峰向长波方向线性漂移，可据此实现对特定波长的损耗。长度和折射率调制深度主要影响损耗峰深度，可以用于调控损耗峰出现极深值点。得到当两个级联LPG的周期为500 μm、长度为3 cm，折射率调制深度为0.00014时存在窄而深的最优CLPG损耗峰。该研究结论为分析级联长周期光纤光栅理论和改进传感器件设计应用提供了依据。
Abstract: Based on the coupled-mode theory, the spectral characteristics of CLPG are studied by using the transfer matrix method. The results show that a more obvious transmission spectrum can be obtained by selecting two LPG cascades with the same parameters. The increase of the period leads to the linear shift of the loss peak to the long wave direction, which can realize the loss of a specific wavelength. Length and refractive index modulation depth mainly affect the peak depth, which can be used to control the extremely deep point in the loss peak. The simulation shows when the period of two cascaded LPG is 500 μm, the length is 3 cm, and the refractive index modulation depth is 0.00014 the narrow and deep optimal CLPG loss peak is obtained. This research provides a basis for the theory of CLPG and improves the design and application of sensing devices.
文章引用：康萍萍. 长周期光纤光栅的级联光谱特性研究[J]. 传感器技术与应用, 2023, 11(6): 454-463. https://doi.org/10.12677/JSTA.2023.116052

参考文献

[1] Vengsarkar, A.M. and Lemaire, P.J. (1996) Long-Period Fiber Gratings as Band-Rejection Filters. Journal of Lightwave Technology: A Joint IEEE/OSA Publication, 14, 58-65. [Google Scholar] [CrossRef] 
[2] Ke, H. and Chiang, K.S. (1998) Analysis of Phase-Shifted Long-Period Fiber Gratings. IEEE Photonics Technology Letters, 10, 1596-1598. [Google Scholar] [CrossRef] 
[3] 陈儒. 长周期光纤光栅传输谱的matlab仿真[J]. 计算机仿真, 2007, 24(4): 301-303+321.
[4] 张奎华. 长周期光纤光栅传输谱特性研究[J]. 激光杂志, 2014, 35(9): 3638.
[5] 朱雨雨, 郗亚茹, 张亚妮, 等. 长周期光纤光栅光谱特性仿真研究[J]. 中国光学, 2020, 13(3): 451-458.
[6] Duhem, O., Dascota, A. and Henninot, J.F. (1999) Long Period Copper Coated Grating as an Electrically Tunable Wave-length-Selective Filter. Electronics Letters, 35, 1014-1016. [Google Scholar] [CrossRef] 
[7] Wang, Y.P., Rao, Y.J., Ran, Z.L., et al. (2003) A Novel Tunable Gain Equalizer Based on a Long-Period Fiber Grating Written by High-Frequency CO2 Laser Pulses. IEEE Photonics Technology Letters, 15, 251-253. [Google Scholar] [CrossRef] 
[8] Zhu, T., Rao, Y.J., Song, Y., et al. (2009) Highly Sensitive Tem-perature-Independent Strain Sensor Based on a Long-Period Fiber Grating with a CO2-Laser Engraved Rotary Structure. IEEE Photonics Technology Letters, 21, 543-545. [Google Scholar] [CrossRef] 
[9] Wang, Q., Du, C., Zhang, J.M., et al. (2016) Sensitivity-Enhanced Temperature Sensor Based on PDMS-Coated Long Period Fiber Grating. Optics Communications, 377, 89-93.
[10] Bai, Y.K., Zhang, Y. and Ma, X.R. (2015) A Novel Surrounding Refractive Index Sensor Based on the Polarization Characteristics of Thin-Cladding Long-Period Fiber Grating. Optics Communications, 355, 607-611. [Google Scholar] [CrossRef] 
[11] Dianov, E.M., Vasiliev, S.A., Kurkov, A.S., et al. (1996) In-Fiber Mach-Zehnder Interferometer Based on a Pair of Long-Period Gratings. Proceedings of European Conference on Optical Communication IEEE, Vol. 1, 65-68.
[12] Zou, H.B., Liang, D.K. and Zeng, J. (2012) Dynamic Strain Measurement Using Two Wavelength-Matched Fiber Bragg Grating Sensors Interrogated by A Cascaded Long-Period Fiber Grating. Optics& Lasers in Engineering, 50, 199-203. [Google Scholar] [CrossRef] 
[13] 匡娅祺, 周次明, 张文举. 级联长周期光纤光栅光谱特性研究[J]. 光学与光电技术, 2013, 11(2): 43-47.
[14] 高敏, 葛海波, 李盼盼, 等. 不同长周期光栅的级联传输谱特性[J]. 光通信技术, 2018, 42(11): 56-59.
[15] 宋世德. 长周期光纤光栅的特性及传感应用研究[D]: [博士学位论文]. 大连: 大连理工大学, 2023: 6-21.
[16] Hu, X.L., Liang, D.K., Zeng, J., et al. (2011) A Study on a Long Period Fiber Grating Pair’s Spectral Characteristics. Physics Pro-cedia, 19, 367-373. [Google Scholar] [CrossRef] 
[17] 王霞元, 黄勇林. 级联长周期光纤光栅的光谱特性研究[J]. 应用光学, 2012, 33(4): 821-826.
[18] 张自嘉, 施文康, 高侃, 等. 长周期光纤光栅的谱结构研究[J]. 光子学报, 2004, 33(11): 1308-1312.
[19] Ding, J.F., Zhang, A.P. and Fu, H.Y. (2005) Experimental Charac-terization of the Spectra of Etched Long-Period Grating Pairs. Passive Components and Fiber-Based Devices II, Vol. 6019, 60193H. [Google Scholar] [CrossRef] 
[20] Zhan, Y.G., Gu, K., Wu, H., et al. (2013) A Combined Long Period Fiber Grating Multi-Parameter Sensor. Sensor Review, 33, 220-227. [Google Scholar] [CrossRef] 
[21] Kamikawachi, R.C., Possetti, G.R.C., Muller, M., et al. (2007) Influence of the Surrounding Refractive Index on the Thermal and Strain Sensitivities of a Cascaded Long Period Grating. Measurement Science & Technology, 18, 3111. [Google Scholar] [CrossRef] 

为你推荐