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Legacy optical fibers provide multidimensional communications

A new twist on quantum communication applying conventional optical fibers has been presented by a team of scientists from Johannesburg. To be more precise, it is possible to transmit numerous quantum patterns of twisted light across a standard optical fiber link that usually supports just one light pattern. Thus, such a novel application of fiber...

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Raman fiber optic probe for glucose sensing

Several tools for Raman analysis have been produced and already tested for blood glucose monitoring in vivo that plays a crucial role in people suffering from diabetes. Raman spectroscopy in reflection geometry allows collecting signals from the forearm applying a paraboloidal mirror combined with a spectrograph and a tall detector. Nevertheless, Raman fiber optic probes...

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The significance of optical fiber technology for the FTTH

Recently a manufacturer of fiber optic systems from Canada has demonstrated their new optical fibers that provide a lot of benefits over standard fiber systems, containing such features as reduced material and installation costs, fewer fiber connection points, simplified repair and maintenance, and a migration path for future fiber optic applications. The thing is that...

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Novel fiber optic cable that can transmit both data and power

A group of researchers from Japan has developed a fiber optic system that allows transmitting both data and power over the same fiber optic cable. The main purpose of such a fiber optic technology is considered to meet the growing power demands of wireless communications. To be more precise, the team demonstrates that the novel...

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CO2 laser makes the flexibility of optical fiber end cap splicing and fiber array assembly higher

Today the technology of CO2 lasers allows fiber end-cap splicing of complex optical fiber structures, splicing of different fiber optic elements to the end face as well as equipping of high-power-capable fiber array arrangements. The thing is that such qualities of CO2 laser power as spatial and temporal control provides the automated, steady, and customized...

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New optical fibers made of cellulose

A group of researchers from Finland has presented cellulose-based optical fibers (waveguides from wood). In spite of the fact that such optical fibers will hardly be used in conventional fiber optic applications such as telecommunication, finally, wood fiber optic systems could offer great help in moisture detection and other niche sensing applications. The operating principle...

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Fiber optic cables operate as new seismic sensors

Crisscrossing the seafloor is considered to be a huge web of fiber optic cables applied for the internet, television, and telephony. Nevertheless, it is the capability of fiber optic cables for sensing Earth’s tectonic plates is of great interest to researchers. According to a recent study published in the journal Science, about 20 kilometers of...

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High power optical fiber provides multisite photometry in the brain

A team of scientists from Italy and the U.S. presents a light technique based on fiber optic technology to catch and detect neural activity in the brain. The optical fiber technique enables signals from different brain regions to be gathered simultaneously through the use of a tapered fiber optic probe. To be more precise, fiber...

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Endoscopic fiber catheter and its applications

An endoscope is an optical device that is used to study hard-to-reach cavities of mechanisms, machines, and equipment. In its simplest form, it is a long flexible or rigid fiber bundle with a lens, optical system, illumination, and eyepiece. In the case when the optical fiber is used for image transmission, such an endoscope is...

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Fluorescence fiber probe for nanoscale thermometry

High-sensitivity temperature measurements require the reduction of the auto-fluorescence produced by an optical fiber probe. Additionally, a novel fluorescence fiber probe allowing decreasing the noise has been developed by fusion-splicing a photonic crystal fiber (PCF) and a traditional single-mode fiber.  The operation of the novel fiber probe was already tested experimentally by evaluating the auto-fluorescence...