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This Week in Photonics: An Optical Fiber That Preserves the Coherent Properties of Light (7/27/2017)

This Week in Photonics: An Optical Fiber That Preserves the Coherent Properties of Light
The fiber enables control over both the distribution of light intensity and the polarization of light.
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Thursday, July 27, 2017
       
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Large Mode Area Optical Fibers Maintain Polarization
Large Mode Area Optical Fibers Maintain Polarization
An optical fiber has been developed that preserves the coherent properties of light. This tapered fiber could be useful in the construction of high-power pulsed fiber lasers and amplifiers and polarization-sensitive sensors. The fiber enables control over both the distribution of light intensity and the polarization of light. It has an elliptical inner cladding and an extremely large core diameter that increases adiabatically from 8 µm to 70 µm.
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Smartphone App Uses Quantum Technology to Identify Fake Products
Smartphone App Uses Quantum Technology to Identify Fake Products
An atomic-scale ID based on quantum technology has been demonstrated using a smartphone application. The quantum ID (QID) could potentially be used for verifying the authenticity of many types of products, from medicines to automotive parts.
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Harvard, MIT Researchers Use Google Maps to Study Gentrification, Urban Planning
Harvard, MIT Researchers Use Google Maps to Study Gentrification, Urban Planning
Researchers from Harvard University and the Massachusetts Institute of Technology (MIT) have authored a study that uses computer vision algorithms to examine millions of Google Street View images in an effort to measure whether and how urban areas are changing.
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Self-Powered Smart Window Uses Near-UV Light
Self-Powered Smart Window Uses Near-UV Light
A self-powered smart window features a novel type of solar cell that selectively absorbs near-UV light. The near-UV light is used to generate electricity, which powers chemical reactions that lighten or darken the glass as needed. Organic semiconductors — specifically, contorted hexabenzocoronene (cHBC) derivatives — were used for constructing the solar cells.
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Optical Approach to Fracture Testing Measures Concrete Strength
Optical Approach to Fracture Testing Measures Concrete Strength
A light-based approach to measuring the strength of opaque heterogeneous concrete mixes applies a light-refracting coating, designed to display stress positions, to the surface of the concrete, then takes a photograph of the concrete surface and uses photo-stress analysis tomography (PSAT) to discover where stress levels in the concrete are most extreme, before cracks or fractures occur.
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An International Meeting of Optical Minds  Read Article 

Rochester Accelerator Launches  Read Article 

US Naval Research Laboratory Granted Solar Cell Patent  Read Article 

Lumileds Goes Independent  Read Article 

University of Arizona Receives Surveillance Grant for Border Patrol  Read Article 

 
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Industry Events
 
 
CIOE 2017
CIOE 2017
September 6-9, 2017 - Shenzhen Convention & Exhibition Center - Shenzen China
China International Optoelectronic Exposition (CIOE), the world’s largest optoelectronics exhibition, is a one-stop sourcing platform for thousands of optoelectronic products, featuring over 3,200 brands from over 65 countries and regions. Exhibits cover the breadth of the optoelectronics industry including optical communications, lasers, photonics, IR applications, sensors, imaging, precision optics and LEDs. Conference topics include intelligent optical networks, biophotonics, optical lenses, camera modules, sapphire emerging applications, IR imaging and laser processing.
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Looking for Fiber Optics & Accessories products? Search PhotonicsBuyersGuide.com, or browse these product categories:
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