Results 41 to 50 of about 59,535 (239)

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

open access: yesSensors, 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

High-precision fiber-optic temperature sensor based on Fabry-Perot interferometer with reflective thin-film multilayer structures

open access: yesНаучно-технический вестник информационных технологий, механики и оптики
An embodiment of a fiber-optic temperature sensor based on a Fabry-Perot interferometer and a scheme for interrogating an experimental sample of the sensor are proposed.
I. D. Moor   +6 more
doaj   +1 more source

Pass-through Mach-Zehnder topologies for macroscopic quantum measurements

open access: yes, 2011
Several relatively small-scale experimental setups aimed on prototyping of future laser gravitational-wave detectors and testing of new methods of quantum measurements with macroscopic mechanical objects, are under development now.
Khalili, F. Ya.
core   +1 more source

Thermal noise from optical coatings in gravitational wave detectors [PDF]

open access: yes, 2006
Gravitational waves are a prediction of Einstein's general theory of relativity. These waves are created by massive objects, like neutron stars or black holes, oscillating at speeds appreciable to the speed of light. The detectable effect on the Earth of
Abbott   +17 more
core   +1 more source

Performance of a 1200m long suspended Fabry-Perot cavity

open access: yes, 2001
Using one arm of the Michelson interferometer and the power recycling mirror of the interferometric gravitational wave detector GEO600, we created a Fabry-Perot cavity with a length of 1200 m.
A Freise   +20 more
core   +1 more source

Pulsed laser linewidth measurement using Fabry–Pérot scanning interferometer

open access: yesResults in Physics, 2016
We apply the Fabry–Pérot (FP) scanning interferometer, which is normally used for continuous wave (CW) laser linewidth measurement, for the measurement of pulsed laser linewidths.
Junwen Xue   +8 more
doaj   +1 more source

A General Approach to Optomechanical Parametric Instabilities

open access: yes, 2009
We present a simple feedback description of parametric instabilities which can be applied to a variety of optical systems. Parametric instabilities are of particular interest to the field of gravitational-wave interferometry where high mechanical quality
Abbott   +15 more
core   +1 more source

Optical vernier technique for in-situ measurement of the length of long Fabry-Perot cavities [PDF]

open access: yes, 1998
We propose a method for in-situ measurement of the length of kilometer size Fabry-Perot cavities in laser gravitational wave detectors. The method is based on the vernier, which occurs naturally when the laser incident on the cavity has a sideband.
Abramovici A   +12 more
core   +2 more sources

Retrodirective optical system [PDF]

open access: yes, 1969
Fabry-Perot interferometer retrodirective reflector modulator for optical ...
Minott, P. O.
core   +1 more source

Stabilization of a Fabry-Perot interferometer using a suspension-point interferometer

open access: yes, 2004
A suspension-point interferometer (SPI) is an auxiliary interferometer for active vibration isolation, implemented at the suspension points of the mirrors of an interferometric gravitational wave detector.
Abbott   +21 more
core   +3 more sources

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