Search Results - "Cranch, G A"

Fiber-optic, cantilever-type acoustic motion velocity hydrophone by CRANCH, G. A, MILLER, G. A, KIRKENDALL, C. K

“…The interaction between fluid loaded fiber-optic cantilevers and a low frequency acoustic wave is investigated as the basis for an acoustic vector sensor. The…”
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Acoustic performance of a large-aperture, seabed, fiber-optic hydrophone array by CRANCH, G. A, CRICKMORE, R, KIRKENDALL, C. K, BAUTISTA, A, DALEY, K, MOTLEY, S, SALZANO, J, LATCHEM, J, NASH, P. J

“…A large-aperture, seabed mounted, fiber-optic hydrophone array has been constructed and characterized. The system is designed for use as a large area…”
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Crack detection in riveted lap joints using fiber laser acoustic emission sensors by Cranch, G A, Johnson, L, Algren, M, Heerschap, S, Miller, G A, Marunda, T S, Holtz, R L

“…Fiber laser ultrasonic sensors are demonstrated to be capable of measuring acoustic emission generated by cracks in aluminum panels. A single laser sensor is…”
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Large-scale remotely pumped and interrogated fiber-optic interferometric sensor array by Cranch, G.A., Kirkendall, C.K., Daley, K., Motley, S., Bautista, A., Salzano, J., Nash, P.J., Latchem, J., Crickmore, R.

“…We report a demonstration of a large-scale remotely interrogated remotely pumped fiber-optic, interferometric sensor array. The system is designed primarily…”
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Suppression of double Rayleigh scattering-induced excess noise in remotely interrogated fiber-optic interferometric sensors by Cranch, G.A., Dandridge, A., Kirkendall, C.K.

“…This letter describes experimental observations of excess noise due to coherent double Rayleigh scattering in the input fiber of a remotely interrogated…”
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Large-scale remotely interrogated arrays of fiber-optic interferometric sensors for underwater acoustic applications by Cranch, G.A., Nash, P.J., Kirkendall, C.K.

“…The fiber-optic interferometric acoustic sensor array has established itself as a potential alternative to the conventional sonar array based on electroceramic…”
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Efficient fiber bragg grating and fiber Fabry-Pérot sensor multiplexing scheme using a broadband pulsed mode-locked laser by CRANCH, Geoffrey A, FLOCKHART, Gordon M. H, KIRKENDALL, Clay K

“…A pulsed broadband mode-locked laser (MLL) combined with interferometric interrogation is shown to yield an efficient means of multiplexing a large number of…”
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Large-scale multiplexing of interferometric fiber-optic sensors using TDM and DWDM by Cranch, G.A., Nash, P.J.

“…This paper describes multiplexing schemes for interferometric fiber sensors based on time-division multiplexed and dense wavelength-division multiplexing using…”
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Intensity noise characteristics of erbium-doped distributed-feedback fiber lasers by Cranch, G.A., Englund, M.A., Kirkendall, C.K.

“…We present an experimental and theoretical investigation into the low-frequency intensity noise characteristics of erbium-doped distributed feedback (DFB)…”
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High-responsivity fiber-optic flexural disk accelerometers by Cranch, G.A., Nash, P.J.

“…This paper presents performance measurements of fiber-optic flexural disk accelerometers. The flexural disk acts as a mass-spring element to which the fiber is…”
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Polarization properties of interferometrically interrogated fiber Bragg grating and tandem-interferometer strain sensors by Cranch, G.A., Flockhart, G.M.H., Kirkendall, C.K.

“…Lead sensitivity in low-coherence interferometric fiber-optic sensors is a well-known problem. It can lead to a severe degradation in the sensor resolution and…”
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Distributed Feedback Fiber Laser Strain Sensors by Cranch, G.A., Flockhart, G., Kirkendall, C.K.

“…The distributed feedback (DFB) fiber laser strain sensor has demonstrated strain resolution comparable to that obtained from high-performance fiber-optic…”
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Remotely-Interrogated Three-Axis Fiber Laser Magnetometer by Cranch, G. A., Miller, G. A., Askins, C. G., Bartolo, R. E., Kirkendall, C. K.

“…A fiber optic magnetic field sensor node designed for seabed-mounted surveillance arrays, incorporating three orthogonally mounted magnetic field sensors and a…”
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The respiratory effects of volatile substances by CRANCH, A G, NALE, T W

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Characterization of the DFB fiber laser resonator strength and α-parameter by response to external feedback by Cranch, G. A., Miller, G. A., Harrison, J., Foster, S.

“…A method to characterize the linewidth enhancement factor or α-parameter of erbium doped fiber from measurements of the sensitivity to backreflection of DFB…”
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Remotely-interrogated three-axis fiber laser magnetometer by Cranch, G. A., Miller, G. A., Askins, C. G., Kirkendall, C. K., Bartolo, R. E.

“…A novel fiber laser magnetometer, designed for seabed-mounted surveillance arrays, is described. The sensor, comprising a metalized fiber laser attached to a…”
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Frequency modulation properties of erbium doped DFB fiber lasers using cavity strain by Cranch, G.A.

“…Frequency modulation of a DFB fiber laser below 50 kHz is demonstrated using cavity strain applied by a piezoelectric element. Uses of this technique are…”
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Frequency noise reduction in erbium doped fibre Bragg grating lasers using active electronic feedback by Cranch, G.A.

“…We present an erbium doped fibre laser (EDFL) in a MOPA (master oscillator power amplifier) configuration with intensity and frequency noise reduction using…”
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Early Index Growth in Germanosilicate Fiber Upon Exposure to Continuous-Wave Ultraviolet Light by Miller, G.A., Askins, C.G., Cranch, G.A., Friebele, E.J.

“…In this paper, high-accuracy measurements of ultraviolet (UV)-induced refractive-index changes (plusmn3times10 -7 ) in germanosilicate optical fiber as a…”
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Toxicity of some of the newer plastics by CRANCH, A G

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