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Browsing by Author "Brian, Culshaw"

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Laser-frequency locking techniques for high-sensitivity strain measurements by high-birefringence fiber Bragg gratings and resonators

Salza, M.; Gagliardi, G.; Di Maio, A.; Ferraro, P.; De Natale, P.; Chehura, Edmon; Tatam, Ralph P. (International Society for Optical Engineering; 1999, 2007-12-31)

A new approach to simultaneously interrogate orthogonal axes of single Fiber- Bragg-Gratings (FBGs) and FBG-FabryPerot resonator sensors fabricated in linearly highly birefringent (HiBi) fibre is presented. Novel ...
Nested long period grating interferometers

Murphy, Richard P.; James, Stephen W.; Tatam, Ralph P. (International Society for Optical Engineering; 1999, 2007-12-31)

The concept of nested fibre optic long period grating (LPG) based interferometers is introduced. A number of in-series, identical LPGs may be used to form a set of nested, multiplexed Mach-Zehnder interferometers that ...
Sensitive elements based on bacteriorhodopsin for fiber-optics sensors of chemical components

Sharkany, Y. P.; Trikur, I. I.; Korposh, Serhiy A.; Ramsden, Jeremy J. (2005-12-31)

The sensitive thin film elements based on bacteriorhodopsin in polymeric matrixes for the multichannel fiber-optical sensor system of measurement of chemical composition of gas mixtures are offered. It is shown, that ...
Simultaneous, independent measurement of temperature and strain using a tilted fibre Bragg grating

Chehura, Edmon; James, Stephen W.; Tatam, Ralph P. (International Society for Optical Engineering; 1999, 2007-12-31)

A single fibre Bragg grating is used to discriminate between temperature and strain by exploiting the core-cladding mode coupling of a tilted fibre Bragg grating (TFBG). The core and cladding modes exhibit different ...
Single camera 3D planar velocity measurements using imaging fibre bundles and two frequency Planar Doppler Velocimetry (2nu-PDV)

Charrett, Thomas O. H.; Ford, Helen D.; Tatam, Ralph P. (SPIE, 2005-12-31)

3D planar flow-field measurements are made using multiple imaging fibre bundles to port different views of the measurement plane, defined by a laser light sheet, to a CCD camera. The Doppler frequency shifts of particles ...

Browsing by Author "Brian, Culshaw"

Browsing by Author "Brian, Culshaw"

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