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Abstract
为了提高弹光调制中非线性光程差干涉信号的光谱反演效率,采用非均匀快速傅里叶变换算法对弹光调制相位非均匀采样干涉信号反演光谱进行了仿真,得到1024点反演速率较直接计算提高20倍,平均误差达到0.87%的结果。结果表明,该算法可实现弹光调制干涉信号的快速、高精度反演,给硬件实现弹光调制反演光谱提供了一定的参考依据。
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References
[1]
|
KEMP J.Piezo-optical birefringence modulators:new use for a longknown effect[J].Journal of the Optical Society of America,1969,59(8):950-953. |
[2]
|
BADOZC J,CANIT J C.New design for a photoelastic modulator[J].Applied Optics,1983,22(4):592-594. |
[3]
|
CHENG J C,NAFIE S D,ALLEN A I.Braunsteinl photoelastic modulator for the 0.55-13 μm range[J].Applied Optics,1976,15(8):1960-1965. |
[4]
|
BUICAN T N.High retardation-amplitude photoelastic modulator:U S,2009026242l[P].2009-10-22. |
[5]
|
ZHAO L,CHEN Y H,ZUO Y H,et al.Study on in-plane optical anisotropy of semiconductor materials by reflectance difference spectroscopy[J].Spectroscopy and Spectral Analysis,2006,26(7):1185-1189(in Chinese). |
[6]
|
TANG Ch W,SHAO Y Q,HE G T,et al.Novel interferometry measurement technique for birefringence crystal thickness[J].Laser Technology,2008,32(5):521-530(in Chinese). |
[7]
|
FAN L,SONG F J.Spectrum analysis of modulated polarized light in phase retardation measurement[J].Spectroscopy and Spectral Analysis,2007,27(9):1685-1688(in Chinese). |
[8]
|
CEN Zh F,LI X T.Light transmission in thermal stress-induced birefringent medium[J].Acta Physica Sinica,2010,59(8):5784-5790(in Chinese). |
[9]
|
WANG Zh B,LIU T,HAO D Zh,et al.Spectral analysis of colored calcite crystal[J].Laser Technology,2008,32(6):596-604(in Chinese). |
[10]
|
DUTF A,ROKHLIN V.Fast Fourier transforms for nonequispaced data[J].SIAM Journal on Scientific Computing Comput,1993,14(6):1368-1393. |
[11]
|
LIU Q H,NGUYEN N.An accurate algorithm for nonuniform fast Fourier transforms(NUFFT's)and its applications[J].Microwave and Guided Wave Letters,1998,8(1):18-20. |
[12]
|
LIU Q H,TANG X Y.An iterative algorithm for nonuniform inverse fast Fourier transform(NU-IFFT)[J].Electronics Letters,1998,34(20):1913-1914. |
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Proportional views
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