The technology of frequency modulated continuous wave (FMCW) laser interferometer
comes from optical interferometry technology, which has the characteristics of less than …

Оптико-электронные обнаружители воздушных объектов обеспечивают возможность
распознавания этих объектов на фоне различных оптических засветок, точного …

Frequency-scanning interferometry (FSI) with an external-cavity diode laser (ECDL) is an
effective technology for the absolute distance measurement of a target. The measurement …

We propose a frequency-sweeping interferometry (FSI) with single external cavity diode
laser that can be used to measure the absolute distances of a dynamic target. Generally, the …

A new frequency-scanning interferometry (FSI) scheme using in-phase and quadrature (IQ)
detection for real-time and rapid absolute optical ranging is presented. Dynamic …

We present here an absolute distance measurement system based on frequency sweeping
interferometry calibrated with a frequency comb. The instantaneous frequency of the …

Digital holography (DH) is a promising method for non-contact surface topography because
the reconstructed phase image can visualize the nanometer unevenness in a sample …

摘要表面形貌检测是工业生产和科学研究所需的关键技术之一, 高精度和高效率是该领域一直
以来的发展方向. 光学频率梳有着独特宽光谱, 窄线宽和稳定频率的特性 …

We demonstrate an optical method for 3D profilometry of micro-nano devices with large step
structures. The measurement principle is based on a dual-comb direct time-of-flight …

The frequency-scanning-interferometry-based (FSI-based) absolute ranging technology is a
type of ranging technology possessing a high precision and no ranging blind area, so it can …