Bragg grating


Also found in: Encyclopedia.

Bragg grating

n.
A diffraction grating created within the structure of a substance, especially an optical fiber, by periodically varying the index of refraction in successive layers within the substance, causing certain frequencies of light passing through the substance to be reflected away and effectively filtered out.

[After Sir William Henry Bragg and Sir William Lawrence Bragg.]
References in periodicals archive ?
Tenders are invited for Supply of Fiber Bragg Grating Sensor
SCOPE OF REPORT The optical switches market is segmented into categories as follows: By type: mechanical optical switch, microelectronics mechanical optical switch (MEMS), liquid crystal optical switch, thermal optical switch, acousto-optic switch, waveguide optical switch, magneto-optical switch, bubble switch, semiconductor optical amplifiers switches and fiber Bragg grating based switches.
We have been designing a damage monitoring system that can detect the changes of strain and deformation of composite materials using an Fiber Bragg Grating (FBG) optical fiber system [3].
The European Business Awards is widely acknowledged as the showcase for Europe's most dynamic companies and we credit Proximion's worldwide leadership in developing optical modules and subsystems based on proprietary Fiber Bragg Grating (FBG) technology for this recognition.
The test setup consisted of the bearing built into a gear test stand and equipped with an array of fibre Bragg grating sensors (Fig.
A NIST scientist designed, characterized, and recently delivered a calibration instrument for optical fiber Bragg grating (FBG) strain and temperature sensors to the Naval Research Laboratory (NRL).
5) Austin, Texas-based 3M Telecom Division announced a new 950 nm Fiber Bragg grating.
Throughout its structure are 120 calibrated Bragg grating fiber-optic strain sensors - more than any other steel bridge in the world.
We are using a device called a Fibre Bragg Grating, which is like a prism in that it breaks the laser beam up in to different 'colours'.
They cover surface plasmons for biodetection, microchip-based flow cytometry in photonic sensing, opto-fluidic techniques for manipulating microscopic particles in bioanalysis, optical fiber sensors and their applications for detecting explosions, photonomic liquid crystal fiber sensors for safety and security monitoring, miniaturized fiber Bragg grating sensor systems for potential air vehicle structural health monitoring, optimal coherence tomography for document security and biometrics, and photonic-assisted instantaneous frequency measurement.
7] demonstrates the capability of modal analysis and damage detection by fiber Bragg grating (FBG) sensors, have tested and verified the superiority of FBG sensor's application in structural health monitoring over other transducers (strain gage and accelerometer).
NIST scientists have have developed a multiple-wavelength calibration reference that incorporates the wavelength flexibility of fiber Bragg grating artifact references and the stability of fundamental molecular absorption references.