Dr. Geoffrey A. Cranch Profile

Dr. Geoffrey A. Cranch

at US Naval Research Lab

SPIE Involvement:

Author

Publications (21)

SPIE Journal Paper | 14 September 2016

Implementation of distributed feedback fiber laser sensor for acoustic measurements in hydraulic fracturing

Rongzhang Chen, Aidong Yan, Mohamed A. Zaghloul, Guanyi Lu, Andrew Bunger, Gary Miller, Geoffrey Cranch, Kevin Chen

OE, Vol. 55, Issue 09, 090506, (September 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.9.090506

KEYWORDS: Fiber lasers, Sensors, Acoustics, Lead, Aluminum, Linear filtering, Wave propagation, Lutetium, Acoustic emission, Gas sensors

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Proceedings Article | 28 September 2015 Paper

High power laser and explosive driven shock wave characterization in solids using fiber optic probes

G. Cranch, J. Grün, J. Weaver, J. Gran, M. Groethe, S. Compton, K. Fournier, B. Dunlop

Proceedings Volume 9634, 96341T (2015) https://doi.org/10.1117/12.2193907

KEYWORDS: Sensors, Solids, Fiber optics, Fiber optics sensors, Explosives, Fabry–Perot interferometers, Michelson interferometers, High power lasers, Wave propagation, Interferometry

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Proceedings Article | 17 May 2011 Paper

Low frequency acoustic response of a planar fiber laser cantilever in a fluid

G. Cranch, G. Miller, C. Kirkendall

Proceedings Volume 7753, 775334 (2011) https://doi.org/10.1117/12.885001

KEYWORDS: Acoustics, Sensors, Particles, Fiber lasers, Motion measurement, Fiber optics, Fiber optics sensors, Optical fibers, Fiber Bragg gratings, Calibration

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Proceedings Article | 12 May 2011 Paper

Fiber laser sensors: enabling the next generation of miniaturized, wideband marine sensors

G. Cranch, G. Miller, C. Kirkendall

Proceedings Volume 8028, 80280I (2011) https://doi.org/10.1117/12.887541

KEYWORDS: Sensors, Fiber lasers, Acoustics, Interferometry, Multiplexing, Magnetometers, Fiber Bragg gratings, Magnetic sensors, Optical fibers, Erbium

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Proceedings Article | 5 October 2009 Paper

Fiber laser strain sensors: enabling a new generation of miniaturized high performance sensors

Geoffrey Cranch, Scott Foster, Clay Kirkendall

Proceedings Volume 7503, 750352 (2009) https://doi.org/10.1117/12.834331

KEYWORDS: Sensors, Fiber lasers, Interferometry, Interferometers, Fiber optics sensors, Multiplexing, Optical fibers, Erbium, Sensor performance, Polarization

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Proceedings Article | 5 October 2009 Paper

High mechanical-Q Lorentz force sensor for DC magnetic field measurement

G. Cranch, C. Askins, R. Bartolo, G. Miller, C. Kirkendall

Proceedings Volume 7503, 750330 (2009) https://doi.org/10.1117/12.834492

KEYWORDS: Sensors, Magnetism, Magnetic sensors, Optical fibers, Fiber lasers, Fiber optics, Aluminum, Composites, Gold, Oscillators

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Proceedings Article | 5 October 2009 Paper

Interferometric interrogation of a multicore fiber, two-axis inclinometer

Gary Miller, Charles Askins, Geoffrey Cranch

Proceedings Volume 7503, 75032R (2009) https://doi.org/10.1117/12.835386

KEYWORDS: Calibration, Sensors, Fiber Bragg gratings, Interferometry, Interferometers, Demodulation, Phase measurement, Phase interferometry, Aluminum, Epoxies

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Proceedings Article | 16 May 2008 Paper

How sensitive is the fibre laser strain sensor?

Scott Foster, Geoffrey Cranch, Alexei Tikhomirov

Proceedings Volume 7004, 70043J (2008) https://doi.org/10.1117/12.785936

KEYWORDS: Sensors, Fiber lasers, Erbium, Interferometry, Acoustics, Thermodynamics, Temperature metrology, Modes of laser operation, Silica, Ions

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Proceedings Article | 16 May 2008 Paper

Optically powered DFB fiber laser magnetometer

G. Cranch, G. M. Flockhart, C. Kirkendall

Proceedings Volume 7004, 700415 (2008) https://doi.org/10.1117/12.785594

KEYWORDS: Sensors, Magnetism, Magnetometers, Fiber lasers, Magnetic sensors, Transducers, Interferometers, Modulation, Fiber optics, Interferometry

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Proceedings Article | 2 July 2007 Paper

Comparative analysis of the DFB fiber laser and fiber-optic interferometric strain sensors

G. Cranch, G. M. H. Flockhart, C. Kirkendall

Proceedings Volume 6619, 66192C (2007) https://doi.org/10.1117/12.738561

KEYWORDS: Sensors, Fiber lasers, Interferometry, Fiber optics sensors, Interferometers, Fiber optics, Thermodynamics, Phase shift keying, Modulation, Phase shifts

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Proceedings Article | 16 March 2006 Paper

Differential phase tracking applied to Bragg gratings in multicore fiber for high-accuracy curvature measurement

Gordon Flockhart, Geoffrey Cranch, Clay Kirkendall

Proceedings Volume 6167, 616701 (2006) https://doi.org/10.1117/12.657576

KEYWORDS: Fiber Bragg gratings, Sensors, Polarization, Phase measurement, Optical fibers, Interferometers, Interferometry, Birefringence, Phase shift keying, Smart structures

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Proceedings Article | 16 March 2006 Paper

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

G. Cranch, G. Flockhart, C. Kirkendall

Proceedings Volume 6179, 61790P (2006) https://doi.org/10.1117/12.657416

KEYWORDS: Sensors, Fiber Bragg gratings, Multiplexing, Fiber optics sensors, Interferometry, Wavelength division multiplexing, Time division multiplexing, Mode locking, Polarization, Reflectivity

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Proceedings Article | 23 May 2005 Paper

Time division multiplexing of fiber Bragg grating sensors using a mode-locked fiber laser source

G. Cranch, Gordon Flockhart, C. Kirkendall

Proceedings Volume 5855, (2005) https://doi.org/10.1117/12.623816

KEYWORDS: Fiber Bragg gratings, Sensors, Multiplexing, Time division multiplexing, Mode locking, Fiber lasers, Interferometry, Wavelength division multiplexing, Interferometers, Signal attenuation

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Proceedings Article | 23 May 2005 Paper

Emission properties of a passively mode-locked fiber laser for time division multiplexing of fiber Bragg grating array applications

G. Cranch, C. Kirkendall

Proceedings Volume 5855, (2005) https://doi.org/10.1117/12.623811

KEYWORDS: Mode locking, Fiber lasers, Fiber Bragg gratings, Sensors, Birefringence, Multiplexing, Interferometry, Erbium, Time division multiplexing, Signal attenuation

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Proceedings Article | 9 June 2004 Paper

Interrogation of a fiber optic interferometric sensor over 166 km using a remotely pumped EDFA and distributed Raman amplification

Geoffrey Cranch, Clay Kirkendall

Proceedings Volume 5502, (2004) https://doi.org/10.1117/12.566721

KEYWORDS: Sensors, Raman spectroscopy, Fiber optics sensors, Optical amplifiers, Interferometry, Fiber optics, Multiplexing, Phase modulation, Single mode fibers, Sensor performance

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Proceedings Article | 3 July 2003 Paper

The nature of the polarization beat frequency as a function of twist for DFB fiber lasers

Robert Bartolo, Geoffrey Cranch, Clay Kirkendall

Proceedings Volume 4974, (2003) https://doi.org/10.1117/12.478278

KEYWORDS: Polarization, Birefringence, Phase shifts, Transmittance, Reflectivity, Sensors, Fiber lasers, Ultraviolet radiation, Temperature metrology, Optical amplifiers

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Proceedings Article | 29 December 2000 Paper

Large-scale multiplexed fiber optic arrays for geophysical applications

Phillip Nash, Geoffrey Cranch, David Hill

Proceedings Volume 4202, (2000) https://doi.org/10.1117/12.411727

KEYWORDS: Sensors, Multiplexing, Fiber optics, Acoustics, Fiber optics sensors, Time division multiplexing, Interference (communication), Ocean optics, Signal detection, Interferometry

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Proceedings Article | 9 November 2000 Paper

Large-scale arrays of interferometric fibre-optic sensors for applications in military surveillance and seismic surveying

Geoffrey Cranch

Proceedings Volume 4185, 418562 (2000) https://doi.org/10.1117/12.2302361

KEYWORDS: Sensors, Interference (communication), Interferometry, Signal detection, Fiber optics sensors, Acoustics, Phase shift keying, Phase interferometry, Ocean optics, Surveillance

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Proceedings Article | 9 December 1999 Paper

High multiplexing gain using TDM and WDM in interferometric sensor arrays

Geoffrey Cranch, Phillip Nash

Proceedings Volume 3860, (1999) https://doi.org/10.1117/12.373002

KEYWORDS: Sensors, Time division multiplexing, Multiplexing, Signal detection, Heterodyning, Wavelength division multiplexing, Optical arrays, Fiber lasers, Interferometry, Dense wavelength division multiplexing

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Proceedings Article | 18 June 1998 Paper

32-element TDM optical hydrophone array

Phillip Nash, Geoffrey Cranch, Lun Cheng, Dick de Bruijn, Ian Crowe

Proceedings Volume 3483, (1998) https://doi.org/10.1117/12.309682

KEYWORDS: Sensors, Time division multiplexing, Optical arrays, Optoelectronics, Ocean optics, Interferometers, Optical components, Multiplexing, Defense and security, Sensor technology

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Proceedings Article | 18 June 1998 Paper

Temperature sensor based on a single Bragg grating

Geoffrey Cranch

Proceedings Volume 3483, (1998) https://doi.org/10.1117/12.309695

KEYWORDS: Fiber Bragg gratings, Coating, Temperature metrology, Refractive index, Temperature sensors, Optical fibers, Modeling, Glasses, Cladding, Sensors

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Showing 5 of 21 publications

Conference Committee Involvement (1)

Fiber Optic Sensors and Applications XV

17 April 2018 | Orlando, FL, United States

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