Patent
Scattered light moire-brillouin gyroscope
William A. Dyes,Farhad Hakimi +1 more
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TLDR
In this article, a scattered light Moire-Brillouin guided wave gyroscope includes a coherent light source for providing two counter-rotating primary waves and an optical waveguide, responsive to the two primary waves.Abstract:
A scattered light Moire-Brillouin guided wave gyroscope includes a coherent light source for providing two counter-rotating primary waves; an optical waveguide, responsive to the two primary waves, for generating a Moire fringe from a primary fringe and a Brillouin fringe derived respectively from the counter-rotating primary waves and from the counter-rotating Brillouin waves produced from the primary waves; and means for detecting the rotation of the Moire fringe relative to the waveguide.read more
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Patent
Method and apparatus for analyzing optical fibers by inducing Brillouin spectroscopy
TL;DR: In this paper, a pumplaser is used to backscattered by spontaneous Brillouin scattering, which is then superimposed to a light wave derived from the pumpler and heterodyned at the detector.
Patent
Tissue extraction and maceration device
TL;DR: In this paper, a tissue harvesting tip is formed on the distal end of the shaft that is effective to excise a tissue sample when the shaft is moved to a distal position, and a cutting member that is coupled to the shaft at a position proximal to the harvesting tip.
Patent
Technique of reducing the Kerr effect and extending the dynamic range in a brillouin fiber optic gyroscope
TL;DR: In this article, the authors used an intensity modulator in the optical loop of a Brillouin fiber optic gyroscope to attenuate the counterpropagation of the counter-propagating light wave.
Patent
Tunable distributed bragg reflector laser for wavelength dithering
Per Bang Hansen,Uziel Koren +1 more
TL;DR: In this paper, an apparatus and method for suppressing stimulated Brillouin scattering (SBS) of the output light from a laser such as a distributed Bragg reflector (DBR) semiconductor laser using a tuner which responds to a dither signal is described.
Patent
Single-frequency Brillouin fiber ring laser with extremely narrow linewidth
Jihong Geng,Shibin Jiang +1 more
TL;DR: In this article, a single-frequency Brillouin fiber ring laser with extremely narrow linewidth was used to generate a dual-wavelength actively stabilized laser from a single ring cavity.
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Patent
Brillouin ring laser
TL;DR: A Brillouin ring laser comprises a fiber optic resonator formed from a loop (14) of fiber optic material (10) and a fiber-optic directional coupler (20) for optically closing the loop.
Patent
Stimulated brillouin scattering ring laser gyroscope
Victor Vali,R. W. Shorthill +1 more
TL;DR: In this article, a stimulated Brillouin scattering (SBS) ring laser gyroscope is constructed from a single-mode optical fiber waveguide and is optically coupled to a laser to accommodate being pumped in two directions by laser radiation having sufficient energy to induce SBS.
Patent
CW Brillouin ring laser
TL;DR: In this paper, a CW Brillouin ring laser with a pair of partially reflective mirrors positioned to form a ring optical path with the fiber ends, produces a CW Stokes beam when a pump beam is directed into one end of the optical fiber and propagates around the ring in a direction opposite to the pump beam.
Patent
Ring laser having elastic wave bias
TL;DR: In this article, a ring laser is reduced by applying elastic waves to the element such that particles of the elastic material vibrate along the common optical path, and the beam coupling is reduced.