在光谱域干涉测量中恢复距离信息。

Recovering distance information in spectral domain interferometry.

作者信息

Bradu Adrian, Israelsen Niels Møller, Maria Michael, Marques Manuel J, Rivet Sylvain, Feuchter Thomas, Bang Ole, Podoleanu Adrian

机构信息

Applied Optics Group, School of Physical Sciences, University of Kent, CT2 7NH, Canterbury, UK.

DTU Fotonik, Department of Photonics Engineering, Technical University of Denmark, DK-2800, Kongens Lyngby, Denmark.

出版信息

Sci Rep. 2018 Oct 18;8(1):15445. doi: 10.1038/s41598-018-33821-0.

DOI:10.1038/s41598-018-33821-0

PMID:30337645

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6194011/

Abstract

This work evaluates the performance of the Complex Master Slave (CMS) method, that processes the spectra at the interferometer output of a spectral domain interferometry device without involving Fourier transforms (FT) after data acquisition. Reliability and performance of CMS are compared side by side with the conventional method based on FT, phase calibration with dispersion compensation (PCDC). We demonstrate that both methods provide similar results in terms of resolution and sensitivity drop-off. The mathematical operations required to produce CMS results are highly parallelizable, allowing real-time, simultaneous delivery of data from several points of different optical path differences in the interferometer, not possible via PCDC.

摘要

本研究评估了复主从（CMS）方法的性能，该方法在数据采集后，无需进行傅里叶变换（FT），即可处理光谱域干涉测量设备干涉仪输出端的光谱。将CMS的可靠性和性能与基于FT的传统方法（带色散补偿的相位校准，PCDC）进行了对比。我们证明，在分辨率和灵敏度下降方面，这两种方法都能提供相似的结果。生成CMS结果所需的数学运算具有高度的可并行性，可实时、同时从干涉仪中不同光程差的多个点传输数据，而PCDC方法无法做到这一点。