ABSOLUTE OPTICAL RANGING USING LOW COHERENCE INTERFEROMETRY

被引：112

作者：

DANIELSON, BL

BOISROBERT, CY

机构：

[1] U.S. National Institute of Standards and Technology, Electromagnetic Technology Division, Boulder, CO

来源：

APPLIED OPTICS | 1991年 / 30卷 / 21期

关键词：

D O I：

10.1364/AO.30.002975

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We describe a method for measuring submicrometer distances with an asymmetric fiber Michelson interferometer having an LED as a source of radiation. By measuring the phase slope of the Fourier components in the frequency domain, it is possible to locate the position of reflections with nanometer precision even in the presence of sample dispersion. The method is compatible with time domain sampling at the Nyquist rate which assures efficiency in data acquisition and processing.

引用

页码：2975 / 2979

页数：5

共 15 条

[1]

BELL RJ, 1972, INTRO FOURIER TRANSF, pCH8

[2]

BIRCH JR, 1979, INFRARED MILLIMETER, V2, pCH3

[3]

Bosselmann T., 1984, 2ND P INT C OPT FIB, P361

[4]

BRACEWELL R, 1978, FOURIER TRANSFORM IT