Pre-processing for the optical feedback self-mixing interferomitric signal
-
摘要: 为了提高参数估计的精确度,根据光反馈自混合干涉信号的特点,采用对原始光反馈自混合实验信号进行滤波和归一化等预处理方法,有效地滤除了噪声,使信号平坦化,而且预处理后的实验信号与理论模型仿真数据更加吻合。分别利用原始实验信号和预处理后的信号对参数进行估计,比对结果表明,使用预处理后的光反馈自混合信号进行参数估计,线宽展宽因数和光反馈水平因子C的测量精度分别提高了5.52%和4.55%。Abstract: For improving the precision of the parameter estimate,a set of pre-processing methods including filtering and normalization were proposed for the initial experimental signal according to the characteristics of the optical feedback self-mixing interference signal.The proposed approach implements filtering of noise effectively and flat the signal.The pre-processed OFSMI experimental signal tallied much with the theoretic signal.Estimating parameters using the initial and the pre-processing signal separately,comparison results show that the latter can make the accuracy of the line width spreading factorand the optical feedback level factor C improve by 5.52% and 4.55% respectively.
-
-
[1] LORENZO S,YU Y G,GUIDO G L,et al.Self-mixing laser diode velocimetry:application to vibration and velocity measurement[J].IEEE Transactions on Instrumentation and Measurement,2004,53(1):223-232.
[1] GUIDO G L,MICHELE N,SILVANO D,et al.Laser diode self-mixing technique for sensing applications[J].J Opt A:Pure Appl Opt,2002,4(6):283-294.
[2] YU Y G,CHENG M,QIANG X F.Self-mixing interference effects in laser diode with multiple optical feedback[J].Acta Optica Sinica,2001,21 (9):1093-1098(in Chinese).
[3] NOEL S,THIERRY B,LESCURE M.Dedign of a phase-shifting optical feedback interferometer using an eletrooptic modulator[J].IEEE J Q E,2000,36(5):789-802.
[4] LIU G,ZHANG Sh L,ZHU J,et al.Interference of two beams in a HeNe laser with optical feedback[J].Laser Technology,2003,27 (5):470-472(in Chinese).
[5] SILVANO D,GUIDO G,SABINA M.Laser diode feedback interferometer for measurement of displacements without ambiguity[J].IEEE J Q E,1995,31(1):113-119.
[6] DINGY Ch,ZHANG Sh L,LI Y,et al.Experimental study on the selfmixing interference with orthogonal polarized He-Ne light[J].Laser Technology,2004,28(1):33-35(in Chinese).
[7] GUIDO G,MICHELE N.Laser diode linewidth measurement by means of self-mixing interferometry[J].IEEE Photonics Technology Letter,2000,12 (8):1028-1030.
[8] YU Y G,GUIDO G,SILVANO D.Measurement of the linewidth enhancement factor of semiconductor lasers based on the optical feedback self-mixing effect[J].IEEE Photonics Technology Lettrs,2004,16(4):990-992.
[9] LI Sh Y,YU Y G,YE H Y,et al.The estimation of the parameters in the model of the self-mixing effect in semiconductor lasers[J].Laser Technology,2005,29 (5):519-521 (in Chinese).
-
期刊类型引用(3)
1. 龚皓, 干彬. 基于大数据分析技术的激光三维图像重构研究. 激光杂志. 2019(06): 83-87 . 
百度学术
2. 韩媞. 低对比度全景球面图像目标分割方法. 科学技术与工程. 2017(14): 234-238 . 百度学术
3. 王淑青, 朱道利, 潘健, 李叶伟, 刘天俊, 李维, 要若天. 一种改进的Otsu红外林火图像提取方法研究. 激光杂志. 2016(10): 99-101 . 百度学术
其他类型引用(4)
计量
- 文章访问数: 0
- HTML全文浏览量: 0
- PDF下载量: 7
- 被引次数: 7
下载: