Results 61 to 70 of about 66,598 (211)

Fabrication and Characterization of Seawater Temperature Sensor with Self-Calibration Based on Optical Microfiber Coupler Interferometer

open access: yesApplied Sciences, 2020
In this paper, a novel high-sensitivity temperature sensor with two sensing regions based on optical microfiber coupler interferometer (OMCI) for ocean application is proposed. The OMCI sensor is constructed by connecting Faraday mirrors to the two ports
Lingjun Zhou   +8 more
doaj   +1 more source

Performance Analysis of Interferometer Algorithm under Phase Measurement Error

open access: yesApplied Sciences, 2021
Direction finding has been extensively studied over the past decades and a number of algorithms have been developed. In direction finding, theoretic performance prediction is a fundamental problem.
Chan-Bin Ko, Joon-Ho Lee
doaj   +1 more source

Gas sensor design using a Fabry-Perot interferometer with long cavity length as a modulator [PDF]

open access: yes, 2006
A gas sensor based on correlation spectroscopy using a FPI with long cavity length (>500 µm) as a modulator is presented.
Rutt, Harvey N.   +3 more
core   +1 more source

Improved Resolution and Stability in a Dispersion Interferometer Using a Modulation Amplitude Ratio [PDF]

open access: yes, 2010
A dispersion interferometer is immune to mechanical vibrations, which is a great advantage for application to steady-state fusion reactors. This paper describes the performance of a phase-modulated dispersion interferometer with a new phase extraction ...
OKAJIMA, Shigeki   +7 more
core   +2 more sources

Wavelength switchable and stable single-longitudinal-mode erbium-doped fiber laser based on Mach–Zehnder interferometer and tunable filter

open access: yesInternational Journal of Optomechatronics, 2018
An erbium-doped fiber laser with all-fiber Mach–Zehnder interferometer (MZI) and tunable filter was proposed and experimentally demonstrated. In the designed fiber laser, 6 m C-band erbium-doped fiber was selected as a gain medium; the MZI comprised two ...
Wei He   +3 more
doaj   +1 more source

Utilizing intraoperative aberrometry and digital eye tracking to develop a novel nomogram for manual astigmatic keratotomy to effectively decrease mild astigmatism during cataract surgery

open access: yesTaiwan Journal of Ophthalmology, 2019
PURPOSE: The purpose of the study is to develop a novel nomogram and validate with a retrospective comparative study for manual astigmatic keratotomy (MAK) with the assistance of intraoperative aberrometry (Optiwave Refractive Analysis [ORA]) and digital
Ming Chen   +4 more
doaj   +1 more source

Phase‐difference measurement‐based angle of arrival estimation using long‐baseline interferometer

open access: yesIET Radar, Sonar & Navigation, 2023
This article presents a direction‐finding method based on phase difference measurement for wide‐ranging applications of electronic intelligence. By including three processing steps of rotating, re‐scaling, and rounding of phase plane, the proposed method
Van‐Sang Doan   +3 more
doaj   +1 more source

Design of an interference system for measuring the transverse beam size in HLS-II

open access: yesInternational Journal of Optomechatronics, 2022
In this paper, a horizontal and vertical double-slits interferometer using visible light are designed to measure the transverse beam size of Hefei Light Source II (HLS-II).
Sanshuang Jin   +7 more
doaj   +1 more source

Vibration compensating beam scanning interferometer for surface measurement [PDF]

open access: yes, 2007
Light beam scanning using a dispersive element and wavelength tuning is coupled with fibre-optic interferometry to realize a new surface measurement instrument. The instrument is capable of measuring nano-scale surface structures and form deviation.
Wang, Kaiwei   +3 more
core   +1 more source

Path-length measurement performance evaluation of polarizing laser interferometer prototype [PDF]

open access: yes, 2015
The space laser interferometer has been considered the most promising means for detecting gravitational waves and improving the accuracy and spatial resolution of the Earth's gravity model.
Luo ZR(罗子人)   +5 more
core   +1 more source

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