Distributed Feedback Fiber Laser Strain Sensors

Cranch, Geoffrey A.; Flockhart, Gordon M. H.; Kirkendall, Clay K.

doi:10.1109/jsen.2008.926876

Cited by 174 publications

(72 citation statements)

References 44 publications

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“…At present, thermalnoise-limited strain sensitivity can only be achieved in short, active optical cavities based on fiber lasers (3). Both the absence of probing lasers with sufficient frequency stability at frequencies below 1 Hz and attaining sufficient environmental isolation may present major obstacles to achieving the full aspiration of (1).…”

Section: −1=2mentioning

confidence: 99%

Comment on “Probing the Ultimate Limit of Fiber-Optic Strain Sensing”

Cranch

Foster

2012

Science

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Section: −1=2mentioning

confidence: 99%

Comment on “Probing the Ultimate Limit of Fiber-Optic Strain Sensing”

Cranch

Foster

2012

Science

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“…This forms a robust method of transporting the signal information over long fiber lengths independent of optical power and variation in transmission losses through the system. The fiber laser strain sensor is capable of resolving axial length fluctuations less than 1 fm/Hz 1/2 at 1 kHz, approximately two orders of magnitude higher than achieved with fiber optic interferometry [15]. Since the laser can support large frequency modulations, the dynamic range of the measurement is also large (greater than ~120 dB/Hz) limited ultimately by the electronic sampling rate.…”

Section: Prototype Sensor Responsivity and Transducer Frequency Responsementioning

confidence: 99%

All-optical, Three-axis Fiber Laser Magnetometer

Cranch¹,

Miller²,

Kirkendall³

2012

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“…Single-frequency narrow-linewidth lasers are fundamental to a vast array of applications in fields including metrology, optical frequency transfer, coherent optical communications, highresolution sensing, and light detection and ranging (LIDAR) [1][2][3][4][5][6][7][8][9]. In these applications, the phase and frequency noise is one of the key factors to affect the system performance.…”

Section: Introductionmentioning

confidence: 99%

120° Phase Difference Interference Technology Based on 3 × 3 Coupler and its Application in Laser Noise Measurement

Yang¹,

Xu²,

Cai³

et al. 2017

Optical Interferometry

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A 120° phase difference interferometer technology based on an unbalanced Michelson interferometer composed of a 3 × 3 optical fiber coupler is proposed, and based on this technology, the differential phase of the input laser can be obtained. This technology has many applications. This paper introduced its application in laser phase and frequency noise measurement in detail. The relations and differences of the power spectral density (PSD) of differential phase and frequency fluctuation, instantaneous phase and frequency fluctuation, phase noise, and linewidth are derived strictly and discussed carefully. The noise features of some narrow-linewidth lasers are also obtained conveniently without any specific assumptions or noise models. Finally, the application of this technology in the phase-sensitive optical time domain reflectometer (ϕ-OTDR) is also introduced briefly.

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Distributed Feedback Fiber Laser Strain Sensors

Cited by 174 publications

References 44 publications

Comment on “Probing the Ultimate Limit of Fiber-Optic Strain Sensing”

Comment on “Probing the Ultimate Limit of Fiber-Optic Strain Sensing”

All-optical, Three-axis Fiber Laser Magnetometer

120° Phase Difference Interference Technology Based on 3 × 3 Coupler and its Application in Laser Noise Measurement

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