中国激光, 2021, 48 (16): 1606001, 网络出版: 2021-07-30
基于光栅局域温度控制的高精度多相移的产生和滤波器的制备 
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High-Precision Multiphase Shifts Generation and Filter Fabrication Based on Grating Local Temperature Control
图 & 表
图 2. MPSFBG的光谱响应。(a)MPSFBG透射谱中透射峰的局部放大图,插图为MPSFBG的整个透射谱;(b)MPSFBG透射峰的形状因子随相移点数目的变化趋势
Fig. 2. Spectrum of the MPSFBG. (a) Partial enlarged view of the transmission peak in the MPSFBG transmission spectrum, and the inset is the entire transmission spectrum of the MPSFBG; (b) shape factor of the MPSFBG transmission peak changing with number of phase shift points
图 3. 双相移光纤光栅中的一个相移点的相移量误差对滤波器参数的影响。(a)不同单相移量误差下的光纤光栅透射谱;(b)不同单相移量误差下的光纤光栅损耗;(c)不同单相移量误差下的光纤光栅带宽;(d)不同单相移量误差下的光纤光栅形状因子
Fig. 3. Influence of the phase shift amount error of one phase shift point in the dual-phase-shifted FBG on the filter parameters. (a) Transmission spectra of fiber grating at different one phase shift amount errors;(b) loss of fiber grating at different one phase shift amount errors;(c) bandwidth of fiber grating at different one phase shift amount errors; (d) shape factor of fiber grating at different one phase shift amount errors
图 4. 双相移光纤光栅中的两个相移点的相移量误差对滤波器参数的影响。(a)不同两个相移点相移量误差下的光纤光栅透射谱;(b)不同两个相移点相移量误差下的光纤光栅损耗;(c)不同两个相移点相移量误差下的光纤光栅带宽;(d)不同两个相移点相移量误差下的光纤光栅形状因子
Fig. 4. Influence of the phase shift amount error of the two phase shift points in the dual-phase-shifted FBG on the filter parameters. (a) Transmission spectra of fiber grating at different two phase shift amount errors;(b) loss of fiber grating at different two phase shift amount errors;(c) bandwidth of fiber grating at different two phase shift amount errors; (d) shape factor of fiber grating at different two phase shift amount errors
图 5. 双相移光纤光栅中的一个相移点的位置误差对滤波器参数的影响。(a)不同单相移点位置误差下的光纤光栅透射谱;(b)不同单相移点位置误差下的光纤光栅损耗;(c)不同单相移点位置误差下的光纤光栅带宽;(d)不同单相移点位置误差下的光纤光栅形状因子
Fig. 5. Influence of the position error of one phase shift point in the dual-phase-shifted FBG on the filter parameters. (a) Transmission spectra of fiber grating at different one phase shift position errors;(b) loss of fiber grating at different one phase shift position errors;(c) bandwidth of fiber grating at different one phase shift position errors;(d) shape factor of fiber grating at different one phase shift position errors
图 6. 双相移光纤光栅中的两个相移点的位置误差对滤波器参数的影响。(a)不同双相移点位置误差下的光纤光栅透射谱;(b)不同双相移点位置误差下的光纤光栅损耗;(c)不同双相移点位置误差下的光纤光栅带宽;(d)不同双相移点位置误差下的光纤光栅形状因子
Fig. 6. Influence of the position errors of the two phase shift points in the dual-phase-shifted FBG on the filter parameters. (a) Transmission spectra of fiber grating at different two phase shift position errors;(b) loss of fiber grating at different two phase shift position errors;(c) bandwidth of fiber grating at different two phase shift position errors;(d) shape factor of fiber grating at different two phase shift position errors
图 7. 多相移光纤光栅实验结构装置图。(a)实验装置图;(b)FBG利用局域温度控制引入多个相移的理论模型;(c)局域温度控制结构;(d)局域温度控制结构的剖面图
Fig. 7. Structure and experimental setup of MPSFBG. (a) Schematic of the experimental setup; (b) theoretical model of FBG introducing multiple phase shifts using local temperature control; (c) local temperature control structure; (d) sectional view of the local temperature control structure
图 9. 均匀FBG受到不同温度时的透射谱。(a)实验结果;(b)理论仿真结果;(c)实验结果和理论仿真结果的差异
Fig. 9. Transmission spectra of the uniform FBG at different temperatures. (a) Experimental results; (b) theoretical simulation results; (c) difference between the experimental results and theoretical simulation results
图 10. 均匀FBG不同位置受到加热时的透射谱。(a)实验结果;(b)理论仿真结果;(c)实验结果和理论仿真结果的差异
Fig. 10. Transmission spectra when the uniform FBG is heated at different positions. (a) Experimental results; (b) theoretical simulation results; (c) difference between the experimental results and theoretical simulation results
图 11. 双相移光纤光栅的光谱图(加热温度为21.1 ℃,21.3 ℃;加热位置为7.5,15,7.5 mm)
Fig. 11. Spectra of the dual-phase-shifted FBG (temperature is 21.1 ℃, 21.3 ℃; heating position is 7.5, 15, 7.5 mm)
图 12. 温度引起的相移量误差和相移位置误差对双相移光纤光栅的光谱特性的影响。(a)相移量误差;(b)相移位置误差
Fig. 12. Influence of phase shift amount error caused by temperature fluctuation and phase shift position error on the spectral characteristic of the dual-phase-shifted FBG.(a) Phase shift amount error; (b) phase shift position error
梁虹, 应康, 王迪, 魏金金, 李璇, 皮浩洋, 魏芳, 蔡海文. 基于光栅局域温度控制的高精度多相移的产生和滤波器的制备[J]. 中国激光, 2021, 48(16): 1606001. Hong Liang, Kang Ying, Di Wang, Jinjin Wei, Xuan Li, Haoyang Pi, Fang Wei, Haiwen Cai. High-Precision Multiphase Shifts Generation and Filter Fabrication Based on Grating Local Temperature Control[J]. Chinese Journal of Lasers, 2021, 48(16): 1606001.
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