Journal ArticleDOI
Optical techniques to solve the signal fading problem in fiber interferometers
TLDR
Three different optical techniques which eliminate the signal fading problem are presented and experimentally verified and comparison of the three techniques in terms of their technical merits is presented.Abstract:
In single-mode optical fiber interferometer sensors environmental effects such as ambient temperature fluctuations and static pressure changes result in signal fading. Three different optical techniques which eliminate the signal fading problem are presented and experimentally verified. Comparison of the three techniques in terms of their technical merits is presented.read more
Citations
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Journal ArticleDOI
Optical fiber sensor technology
Thomas G. Giallorenzi,Joseph A. Bucaro,Anthony Dandridge,G. H. Sigel,J. H. Cole,Scott C. Rashleigh,R. Priest +6 more
TL;DR: The current state of the art of optical fiber sensors is reviewed, the principles of operation are detailed and the various types of fiber sensors are outlined.
Journal ArticleDOI
Homodyne demodulation scheme for fiber optic sensors using phase generated carrier
TL;DR: In this paper, a phase generated carrier is used to detect phase shifts in the microradian range, which obviates the phase tracker resetting problem encountered in active homodyne detection schemes.
Journal ArticleDOI
Homodyne Demodulation Scheme for Fiber Optic Sensors Using Phase Generated Carrier
TL;DR: In this article, a phase generated carrier is used to detect phase shifts in the microradian range, which obviates the phase tracker resetting problem encountered in active homodyne detection schemes.
Journal ArticleDOI
Passive stabilization scheme for fiber interferometers using (3×3) fiber directional couplers
TL;DR: In this article, a passive stabilization scheme using a (3×3) fiber directional coupler in an all fiber Mach-Zehnder interferometer and suitable signal processing has been successfully demonstrated.
Journal ArticleDOI
Monomode optical fibre interferometers for precision measurement
TL;DR: In this article, the design and performance of fiber optic interferometric sensors optimized for specific periodic and quasi-steady state measurands such as rotation, magnetic field, temperature, etc., are described.
References
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Journal ArticleDOI
Fiber-optic sensing of pressure and temperature
TL;DR: The use of a fiber-optic Mach-Zehnder interferometer to measure differences in temperature or pressure between two single-mode fiber arms is described.
Journal ArticleDOI
Elimination of drift in a single-mode optical fiber interferometer using a piezoelectrically stretched coiled fiber
TL;DR: The feasibility of maintaining a single-mode optical fiber interferometer in quadrature is demonstrated using a servo driven piezoelectrically stretched coiled fiber with stress voltage coefficient of ~27pi rad/V.
Journal Article
Measurement of small phase shifts using a single-mode optical-fiber interferometer
TL;DR: In this paper, periodic phase changes in the 10−6 -rad region were induced and detected in a single-mode all-fiber Mach-Zehnder interferometer by stretching the fiber with a piezoelectric cylinder driven at frequencies between 40 and 10−4 Hz.
Journal ArticleDOI
Measurement of small phase shifts using a single-mode optical-fiber interferometer.
TL;DR: Periodic phase changes in the 10(-6) -rad region have been induced and detected in a single-mode all-fiber Mach- Zehnder interferometer by stretching the fiber with a piezoelectric cylinder driven at frequencies between 40 and 10(4) Hz.
Journal ArticleDOI
Proposal for detection of magnetic fields through magnetostrictive perturbation of optical fibers.
Amnon Yariv,Harry V. Winsor +1 more
TL;DR: The possibility of detecting magnetic fields by a magnetostrictive straining of optical fibers is investigated and the effect of shot noise and the limiting sensitivity are considered.