Results 21 to 30 of about 152,908 (179)

Optimal Design of an Hourglass in-Fiber Air Fabry-Perot Microcavity—Towards Spectral Characteristics and Strain Sensing Technology

Sensors, 2017
An hourglass in-fiber air microcavity Fabry-Perot interferometer is proposed in this paper, and its second reflecting surface of in-fiber microcavity is designed to be a concave reflector with the best curvature radius in order to improve the spectral ...
Qi Wang, Dongchao Yan, Binbin Cui, Zixuan Guo   +3 more
doaj   +1 more source

Analysis of Embedded Optical Interferometry in Transparent Elastic Grating for Optical Detection of Ultrasonic Waves

Sensors, 2021
In this paper, we propose a theoretical framework to explain how the transparent elastic grating structure can be employed to enhance the mechanical and optical properties for ultrasonic detection.
Chayanisa Sukkasem, Suvicha Sasivimolkul, Phitsini Suvarnaphaet, Suejit Pechprasarn   +3 more
doaj   +1 more source

Ultrathin graphene diaphragm-based extrinsic Fabry-Perot interferometer for ultra-wideband fiber optic acoustic sensing.

Optics Express, 2018
An ultra-wideband fiber optic acoustic sensor based on graphene diaphragm with a thickness of 10nm has been proposed and experimentally demonstrated. The two reflectors of the extrinsic Fabry-Perot interferometer is consist of fiber endface and graphene ...
W. Ni, P. Lu, Xin Fu, Wei Zhang, P. Shum, Handong Sun, Chunyong Yang, Deming Liu, Jiangshan Zhang   +8 more
semanticscholar   +1 more source

A theoretical-practical study on poles and zeros calculated from a filtered modulated function of an interference pattern

Results in Physics, 2021
In this work, it is reported that the interference pattern produced by an interferometer can be studied on the s-plane and its modulated function having three poles and two zeros over the imaginary axis.
José Trinidad Guillen Bonilla, Alex Guillen Bonilla, Verónica María Rodríguez Betancourtt, Héctor Guillen Bonilla, Maricela Jiménez Rodríguez, María Eugenia Sánchez Morales, Antonio Casillas Zamora   +6 more
doaj   +1 more source

Optimizing Vernier Effect Sensitivity Through Smaller Cavity Sensor Design [PDF]

EPJ Web of Conferences
This work demonstrates the sensitivity dependence on the chosen cavity length for the sensor Fabry-Perot interferometer (FPI), where the smaller cavity exhibits a higher magnification factor compared to the situation when the cavity length is larger than
Piaia Vinícius, Robalinho Paulo, Silva Susana, Frazão Orlando   +3 more
doaj   +1 more source

Comparative statistical analysis of neutral wind in mid-latitude mesosphere / lower thermosphere based on meteor radar and Fabry—Perot interferometer data

Solar-Terrestrial Physics, 2018
Studies of the upper atmosphere wind are very important both for understanding the mechanism of transformation of exposure energy into heating, movement and chemical activity of the atmosphere, and similar processes of energy transfer from lower to upper
Vasilyev R.V., Artamonov M.F., Merzlyakov E.G.   +2 more
doaj   +1 more source

Investigation of Composite Structure with Dual Fabry–Perot Cavities for Temperature and Pressure Sensing

Photonics, 2021
To deeply analyze the influence of diaphragm materials on the temperature and pressure sensitivity of Fabry–Perot interferometer-based dual-parameter fiber sensors, the multiple transfer method was used to fabricate the dual Fabry–Perot cavities ...
Jun Wang, Long Li, Shuaicheng Liu, Diyang Wu, Wei Wang, Ming Song, Guanjun Wang, Mengxing Huang   +7 more
doaj   +1 more source

Analysis of Dielectric Waveguide Grating and Fabry–Perot Modes in Elastic Grating in Optical Detection of Ultrasound

Sensors, 2021
In our previous work, we have demonstrated that dielectric elastic grating can support Fabry–Perot modes and provide embedded optical interferometry to measure ultrasonic pressure.
Suejit Pechprasarn, Chayanisa Sukkasem, Phitsini Suvarnaphaet   +2 more
doaj   +1 more source

Miniature Twist/Rotation Fabry Perot Sensor Based on a Four-Core Fiber

Proceedings, 2018
This paper presents a miniature Fabry Perot twist/rotation sensor. The presented sensor consists of a single lead-in multicore fiber, which has four eccentrically positioned cores, a special asymmetrical microstructure, similar to a truncated cylinder ...
Vedran Budinski, Denis Donlagic
doaj   +1 more source

Fiber Optic Fabry-Perot Current Sensor Integrated with Magnetic Fluid Using a Fiber Bragg Grating Demodulation

Sensors, 2015
An optical fiber current sensor based on Fabry-Perot interferometer using a fiber Bragg grating demodulation is proposed. Magnetic fluid is used as a sensitive medium in fiber optical Fabry-Perot (F-P) cavity for the optical characteristic of magnetic ...
Ji Xia, Qi Wang, Xu Liu, Hong Luo
doaj   +1 more source