Results 21 to 30 of about 6,811 (191)

Efficient large-scale multiplexing of fiber Bragg grating and fiber Fabry-Perot sensors for structural health monitoring applications [PDF]

, 2006
Fiber Bragg gratings have been demonstrated as a versatile sensor for structural health monitoring. We present an efficient and cost effective multiplexing method for fiber Bragg grating and fiber Fabry-Perot sensors based on a broadband mode-locked ...
Cranch, Geoffrey A., Flockhart, G. M. H., Kirkendall, C. K.   +2 more
core   +1 more source

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

Effects of static and dynamic higher-order optical modes in balanced homodyne readout for future gravitational waves detectors [PDF]

, 2017
With the recent detection of Gravitational waves (GW), marking the start of the new field of GW astronomy, the push for building more sensitive laser-interferometric gravitational wave detectors (GWD) has never been stronger. Balanced homodyne detection (
Barr, Bryan W., Bell, Angus S., Danilishin, Shtefan L., Dupej, Peter, Gräf, Christian, Hennig, Jan-Simon, Hild, Stefan, Houston, E. Alasdair, Huttner, Sabina H., Leavey, Sean S., Pascucci, Daniela, Sorazu, Borja, Spencer, Andrew, Steinlechner, Sebastian, Strain, Kenneth A., Wright, Jennifer, Zhang, Teng   +16 more
core   +2 more sources

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

Candidates for a possible third-generation gravitational wave detector: comparison of ring-Sagnac and sloshing-Sagnac speedmeter interferometers [PDF]

, 2016
Speedmeters are known to be quantum non-demolition devices and, by potentially providing sensitivity beyond the standard quantum limit, become interesting for third generation gravitational wave detectors.
Barr, B., Bell, A.S., Danilishin, S.L., Gräf, C., Hennig, J.S., Hild, S., Houston, E.A., Huttner, S.H., Leavey, S.S., Pascucci, D., Sorazu, B., Spencer, A.P., Steinlechner, S., Strain, K.A., Wright, J.L., Zhang, T.   +15 more
core   +1 more source

Higher-order Laguerre-Gauss interferometry for gravitational-wave detectors with in situ mirror defects compensation [PDF]

, 2015
The use of higher-order Laguerre-Gauss modes has been proposed to decrease the influence of thermal noise in future generation gravitational-wave interferometric detectors.
Allocca, A., Barsuglia, M., Buy, C., Day, R. A., Gatto, A., Pillant, G., Tacca, M., Vajente, G.   +7 more
core   +5 more sources

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

Stabilization of Polymeric Nanofibers Layers for Use as Real-Time and In-Flow Photonic Sensors [PDF]

, 2019
In order to increase the sensitivity of a sensor, the relationship between its volume and the surface available to be functionalized is of great importance.
García-Rupérez, Jaime, Martínez-Pérez, Paula, Maudes, Jon, Murillo, Nieves, Ponce-Alcántara, Salvador, Pérez-Márquez, Ana   +5 more
core   +3 more sources

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