Jun 11, 2026
White light, or low-coherence interferometry, is a technique which dates back to 1913 and the work of Benoit et al. . A detailed theoretical analysis of a simple interferometer, given by Born and Wolf ,
Jun 03, 2026
Telescope metrology systems are dedicated subsystems that measure optical, mechanical, and structural states using laser interferometry, wavefront sensing, and other
Nov 17, 2025
Abstract: Optical fiber sensor networks (OFSNs) provide powerful tools for large-scale buildings or long-distance sensing, and they can realize distributed or quasi-distributed measurement of temperature,
Aug 08, 2025
The incorporation of a sapphire fiber sensing head into the design of the sensor is theoretically possible, and the use of sapphire fiber can be confined to the sensing head. When a broadband source is
Jun 30, 2026
Rayleigh backscattering in optical fibers is employed in fiber-optic DAS, where acoustic disturbances induce fluctuations in light dispersion that are monitored throughout the entire fiber
Dec 27, 2025
ISBN 0 412844206 fiber white-light interferometry (WLI) for a wide range of measuring and sensing applications. As a result of this research effort, the gap between the experimental arrangements
Nov 20, 2025
In this paper, a highly sensitive temperature compensated fiber optic magnetic field sensor by Sagnac and Mach-Zehnder combination interference (SMZI) is proposed and verified. The
Oct 18, 2025
Light Lasers / Coherent Sources Incoherent Sources Active Optical Devices Drivers & Mounts Light Accessories
Dec 21, 2025
The use of optical interferometric techniques in optical fiber sensor applications allows access to the high resolution and large dynamic range that is associated with these methods. Conventional
Oct 30, 2025
An optical fiber F-P interferometric acoustic sensor based on a cantilever was used for sensing photoacoustic signals. White-light interference demodulation algorithm combined with a high
Apr 24, 2026
Optical fiber sensor networks (OFSNs) provide powerful tools for large-scale buildings or long-distance sensing, and they can realize distributed or
Aug 24, 2025
Chromatic dispersion (CD) in optical fibers results in the broadening and overlapping of transmitted lights, and thus reduces the capacity of informat
Feb 15, 2026
Who really leads the race in precision optical metrology? The White Light Interferometry Market remains highly specialized, with competition driven by measurement accuracy, application expertise
Apr 28, 2026
ZYGO is a worldwide supplier of optical metrology systems, custom optical components, and complex electro-optical systems design and
Jul 09, 2026
This paper presents a flexible WLI, in which the light source and the vertical scanning mechanism are separated from the interference probe using fiber-optic components.
Sep 22, 2025
We introduce an optical 3D sensor that can measure the shape of objects with rough surface. The proposed sensor is based on white-light interferometry but it does not require a
Dec 26, 2025
In this Letter, we propose a dynamic fiber-optic white light interferometry (WLI) based on the compressed-sensing (CS) principle.
Jan 15, 2026
An optical fiber high-precision absolute distance measurement technology that incorporates white-light interferometry and single-wavelength interferometry is presented, which is
Mar 17, 2026
This study introduces a sparse-frequency-scanning white-light interferometry (SFS-WLI) system with an adaptive mode-locked cross-correlation
Apr 12, 2026
In this paper, a cost-effective and high-precision optical fiber sensing system based on VT-DBR laser for white light interferometry is proposed. A low-noise, low power, high modulation-bandwidth laser
Oct 20, 2025
Overview The SR-C Compact Reflective Thin-Film Thickness Analyzer is an optically engineered metrology instrument designed for high-precision, non-contact characterization of thin and thick
Aug 21, 2025
<p>Optical fiber sensor networks (OFSNs) provide powerful tools for large-scale buildings or long-distance sensing, and they can realize distributed or quasi-distributed measurement of temperature,
Aug 23, 2025
This type of interferometry is known as white-light or low-coherence interferometry. Opsens'' founders are known to have pioneered the use of white-light interferometry for fiber optic sensing and to have
Oct 26, 2025
An absolute position-sensing system based on a white-light spectrum modulation in a very simple fiber-optic interferometer is presented. The channelled spectrum, captured by a commercial
Apr 11, 2026
Fiber-Optic Sensors Surface-tension-induced force sensing via leakage modulation in anti-resonant hollow-core fiber Shuo Wang, Xiaoling Sun, Ke Tian, Zhuowei
May 04, 2026
Recent developments in spectral white-light interferometry (WLI) are reviewed. Firstly, the techniques for obtaining optical spectrum are introduced.
Aug 06, 2025
The medium for transmitting near-infrared photoacoustic excitation light and probe light is optical fiber with low transmission loss. The sensor has the inherent superiorities of high gas
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