光纤色散法测量闪烁体脉冲光谱

魏福利; 王培伟

doi:10.3788/OPE.20122002.0264

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光纤色散法测量闪烁体脉冲光谱

现代应用光学 | 更新时间：2020-08-12

- 光纤色散法测量闪烁体脉冲光谱
- Measurement of pulse spectra for scintillator based on fiber dispersion
- 光学精密工程 2012年20卷第2期页码：264-269
- 作者机构：
  
  西北核技术研究所西安,710024
- 作者简介：
- 基金信息：
  
  国家自然科学基金资助项目(No.10035020)()
- DOI：10.3788/OPE.20122002.0264
  中图分类号： O433.1;TN253
- 收稿日期：2011-06-29，
  
  修回日期：2011-09-05，
  
  网络出版日期：2012-02-25，
  
  纸质出版日期：2012-02-25
- 稿件说明：
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魏福利, 王培伟. 光纤色散法测量闪烁体脉冲光谱[J]. 光学精密工程, 2012,20(2): 264-269

WEI Fu-li, WANG Pei-wei. Measurement of pulse spectra for scintillator based on fiber dispersion[J]. Editorial Office of Optics and Precision Engineering, 2012,20(2): 264-269
魏福利, 王培伟. 光纤色散法测量闪烁体脉冲光谱[J]. 光学精密工程, 2012,20(2): 264-269 DOI： 10.3788/OPE.20122002.0264.

WEI Fu-li, WANG Pei-wei. Measurement of pulse spectra for scintillator based on fiber dispersion[J]. Editorial Office of Optics and Precision Engineering, 2012,20(2): 264-269 DOI： 10.3788/OPE.20122002.0264.

摘要

提出了一种利用光纤波长色散测量脉冲光谱的方法。由于具有较宽光谱的脉冲光在一定长度的光纤中传播时会发生波形展宽

需要根据测量和标定结果校正展宽的波形才能得到光源的实际光谱曲线。标定时首先利用ps级脉冲光源对测量系统进行时间响应标定

得到系统的时间响应函数;接着测量不同波长光的走时

得到不同波长的群折射率;最后测量光纤中的光谱衰减

得到各种波长的相对衰减或传输效率。利用以上3个标定结果

对波形进行数字逆卷积

并进行走时校正和衰减系数校正

即可对所得到的波形进行恢复。经实验测量和数据处理

得到了一种红光闪烁体的发光光谱曲线

其中心波长与用其他方法测到的中心波长的差小于2 nm

谱线形状基本一致。研究显示

在脉冲光的脉冲宽度远小于其色散展宽时

可以利用光纤的波长色散对脉冲光的光谱进行测量。

Abstract

A new method to measure the spectrum of a pulse light was developed. As the pulse width could be broaden due to the dispersion when a pulse light passed through the optical fiber

the calibration and measurement were proposed to correct and recover the broaden waveform to obtain the real spectrum of a pulse light source. In calibration

the time response function of measuring system was gotten with a ps laser firstly; then the group refractive indexes at different wavelengths were obtained by measuring the time delay of given wavelengths; finally

the relative attenuation index of each wavelength in optical fiber was given by measuring the spectral attenuation. On the basis of the calibration results mentioned above

broaden waveform was recovered by the digital deconvolution

time delay and attenuation .The pulse spectrum of a red scintillator was measured with this method. Results demonstrate that the difference of the center wavelength of the scintillator given by this method and other methods is less than 2 nm

which shows the spectra of pulse light can be measured based on fiber dispersion when the pulse width is much less than its dispersion.

关键词

Keywords

references

刘德明,向清,黄德秀. 光纤光学[M]. 北京:国防工业出版社,1995:60-67. LIU D M, XIANG Q, HUANG D X. Fiber Optics[M]. Beijing: National Defense Industry Press, 1995: 60-67. (in Chinese)[2] 杨慧敏. 色散对光脉冲在光纤中传输的影响[J]. 菏泽学院学报,2011,33(2):53-55. YANG H M. The influence of the dispersion on optical in optical fiber transmission[J]. Journal of Heze University, 2011, 33(2):53-55. (in Chinese)[3] 李院平. 光纤传输过程中的色散特性[J]. 光谱实验室学报,2011,28(3):1412-1414. LI Y P. Dispersion charcteristics in optical fiber transmission[J]. Chinese Journal of Spectroscopy Laboratory, 2011,28(3):1412-1414. (in Chinese)[4] 隋可融,朱晓松,汤晓黎,等. 空芯光纤中介质层色散的研究[J]. 光学学报,2008,28(11):2062-2066. SUI K R, ZHU X S, TANG X L, et al.. Study on atrerial dispersion of dielectric layer in hollow fiber[J]. Acta Optical Sinica, 2008, 28(11):2062-2066. (in Chinese)[5] 刘兆庆. 脉冲辐射场诊断技术[M]. 北京: 科学出版社,1994:130-143. LIU ZH Q. Pulse Radiative Field Diagnostic Technology[M]. Beijing:Science Press, 1994:130-143. (in Chinese)[6] 彭博栋,盛亮,任国浩,等. Lu0.3Y0.7AP闪烁晶体发光特性测量 . 中国核学会2009年学术年会论文集,2009,1(7):491. PENG B D, SHENG L, RENG G H, et al.. Measurements of luminescence characterize of Lu0.3Y0.7AP crystal . Annual Meeting of Chinese Nuclear Achdemy, 2009,1(7):491. (in Chinese)[7] 张永生,郑国鑫. 500 fs紫外激光系统及其在闪烁体荧光特性测试中的应用[J]. 光学精密工程,2011,19(2):475-481. ZHANG Y SH, ZHENG G X. 500 fs UV laser system and its application to fluorescence test of thin film scitillators[J]. Opt. Precision Eng., 2011, 19(2):475-481. (in Chinese)[8] 郑玉权, 王慧, 王一凡. 星载高光谱成像仪光学系统的选择与设计[J]. 光学精密工程,2009, 17(11):2629-2637. ZHENG Y Q, WANG H, WANG Y F. Selection and design of optical systems for spaceborne hyperspectral imagers[J]. Opt. Precision Eng., 2009, 17(11):2629-2637. (in Chinese)[9] 朱灵,陈明星,方杰,等. 光纤傅里叶变换光谱术在光纤光栅传感解调中的应用[J]. 光学精密工程,2010,18(12):2537-2542. ZHU L, CHEN M X, FANG J, et al.. Application of fiber Fourier transform spectroscopy to fiber Bragg grating demodulation[J]. Opt. Precision Eng., 2010, 18(12): 2537-2542. (in Chinese)[10] 王安,朱灵,张龙,等. 全光纤傅里叶变换光谱仪的关键技术研究[J]. 光谱学与光谱分析, 2009, 19(7):1777-1780. WANG AN, ZHU L, ZHANG L, et al.. Research on key technologies of all fiber optic Fourier transform spectrometer[J]. Spectroscopy and Spectral Analysis, 2009,19(7):1777-1780. (in Chinese)[11] 李保生,刘勇,于清华,等. 光纤傅里叶变换光谱仪采样系统[J]. 光学精密工程,2007,15(1):16-21. LI B SH, LIU Y, YU Q H, et al.. Sampling system of optical fiber Fourier transform spectrometer[J]. Opt. Precision Eng., 2007,15(1):16-21. (in Chinese)[12] 邹谋炎. 反卷积和信号复原[M]. 北京:国防工业出版社,2001:93-97. ZOU M Y. Deconvolution and signal recovery[M]. Beijing:National Defense Industry Press, 2001:93-97. (in Chinese)[13] 姚启钧. 光学教程[M]. 北京:高等教育出版社,1989. YAO Q J.Optics Tutorial[M].Beijing:Higher Education Press,1989. (in Chinese)[14] 薛长喜,崔庆丰,杨亮亮,等. 基于柯西色散公式的多层衍射光学元件设计和分析[J]. 光学学报,2011,31(6):254-258. XUE CH X, CUI Q F, YANG L L, et al.. Design and analysis of multi-layer diffractive optical elements with Cauthy dispersion formula[J]. Acta Opitca Sinica, 2011,31(6):254-258. (in Chinese)

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