Physicists at Ludwig Maximilian University (LMU), with colleagues at Saarland University, have demonstrated the transport of an entangled state between an atom and a photon via an optical fiber over a distance of up to 20 km. According to the researchers, this is a new record for distance traveled by an atom and a photonic channel in an entangled state — the previous record was 700 meters. “The experiment represents a milestone, insofar as the distance covered confirms that quantum information can be distributed on a large scale with little loss,” professor Harald Weinfurter...Read full articleRelated content from Photonics MediaARTICLESTwo-Photon Comb Technique Supports 20-km Distribution for Quantum CommunicationIn telecom networks connected by fiber optic cable, transmitted photons tend to be absorbed by the material that comprises the cable after traveling just a few kilometers. To prevent the signal from...Photonics.com 8/31/2020Hollow-Core Fibers Outperform Silica Glass CounterpartsResearchers from the University of Southampton Optoelectronics Research Centre (ORC) have introduced three unique hollow-core fiber designs that each exhibit losses comparable to or lower than those...Photonics Spectra February 2021 IssueEuropium Molecular Crystals Clear a Path for Quantum StorageEuropium molecular crystals, a rare-earth-based material, could provide a robust platform for photonic quantum technologies. The work of a research team from the National Centre for Scientific...Photonics.com 3/24/2022Continuous-Wave OPA Supports Noise-Reduced Chip-Scale Optical Signal ProcessingAn optical amplifier developed at Chalmers University of Technology is poised to radically improve optical communications performance. The compact amplifier is designed to fit on a chip and amplify...Photonics.com 10/8/2021PRODUCTSModular Cable ConnectorsHan-Modular Flexbox modular cable connectors from Harting Ltd. reduce construction and connection efforts when less space is needed. The flexible and reliable supply for fast, linearly moving...EuroPhotonics Autumn 2020 IssueROADMsThe DCP-R series of dense wavelength division multiplexing (DWDM) reconfigurable optical add-drop multiplexers (ROADMs) from Smartoptics AS addresses advanced and reconfigurable optical ring and mesh...Photonics Spectra March 2021 IssueRectangular ConnectorsHan® 1A rectangular connectors from HARTING Ltd. are miniaturized industrial connectors that facilitate fast and secure data transmission. The series features two new inserts. A D-coded...Photonics.com 9/15/2020Optical Fiber IdentifierThe OFI-BIPMe optical fiber identifier from AFL determines fiber activity, transmission direction, and relative core power on standard and bend-insensitive single-mode and multimode fibers. ...Photonics Spectra September 2021 IssuePHOTONICS HANDBOOK ARTICLESPolarization Mode Dispersion: Concepts and Measurement: The performance of high-speed, digital fiber optic communications systems depends upon how reliably the receiver is able to distinguish closely spaced bits of information. Dispersive effects — physical mechanisms that broaden transmitted pulses — degrade this process.There are three fundamentally different dispersive phenomena in optical fiber, of which polarization mode dispersion (PMD) is the most complex. In digital multimode fiber systems, a light pulse...Photonics HandbookAdhesives for Fiber Optics Assembly: Making the Right Choice: Using the proper adhesive in the assembly of fiber optic components not only saves time and expense, but also can improve reliability and performance.Adhesives for fiber optic components that perform well on glass, metal, ceramic and most plastic substrates provide excellent chemical and solvent resistance. They also can act as an electrical...Photonics HandbookFiber Optics: Understanding the Basics: Nothing has changed the world of communications as much as the development and implementation of optical fiber. This article provides the basic principles needed to work with this technology.Optical fibers are made from either glass or plastic. Most are roughly the diameter of a human hair, and they may be many miles long. Light is transmitted along the center of the fiber from one end...Photonics HandbookConnectors and Splices: Correct Alignment Spells Success: Whether the job is splicing fibers together or connecting fibers to system devices, alignment is the key to success. This article explores the many ways to achieve that goal.Just as an electronic connector provides a pluggable connection between electronic circuits, a fiber optic connector provides an optical one. The goal is joining a fiber to a transmitter, receiver or...Photonics HandbookWHITEPAPERSThe Application of WDM Channel Skip FiltersTelecom channel skip filters are components added to wavelength division multiplexing (WDM) add/drop modules — in both coarse wavelength division multiplexing (CWDM) and dense wavelength division...Photonics.com 6/1/2021Fused Silica Scan LensesThe S4LFT1655/328 is very suitable for stereolithography applications in the infrared wavelength range. The lens has a scan field of 410 mm x 410 mm which enables the production of very large...Photonics.com 4/1/2022Recent Research Using Meadowlark Optics Spatial Light ModulatorsThis ever-evolving collection of recent research using Meadowlark Optics Spatial Light Modulators offers a brief overview of specific applications in which Meadowlark Optics’ Spatial Light Modulators...Photonics.com 9/4/2020Fabricating Low Loss GeO2 Thin Films for Planar Waveguides Such as Photonic Integrated CircuitsHigh quality GeO2 thin films that exhibit low loss and low surface roughness were produced by Intlvac’s Nanochrome IV PARMS system, proving that ion assisted AC dual sputtering is an effective...Photonics.com 9/1/2020WEBINARSEuropean Photonics Manufacturing Services Funded by ECThis event is supported by the European initiatives presented and is moderated by EPIC, the European Photonics Industry Consortium. The European Commission is helping companies access the...Photonics.com 6/30/2021Introduction to Quantum Computer Hardware and ModalitiesQuantum computers hold the potential to address complex problems in fields such as material science, quantum chemistry, finance, and pharmaceuticals. How can we realize this promise, and what are the...Photonics.com 4/15/2021Toward Global Quantum NetworksThe internet has had a revolutionary impact on our world. The vision of quantum internet — capable of transmitting quantum information — will provide novel applications that are provably...Photonics.com 8/12/2021Quantum Sensing in Atomic and Solid-State SystemsThe discrete electronic energy levels in atoms and atom-like systems and the ability to probe and control them using their interactions with electromagnetic fields have enabled a host of applications...Photonics.com 9/2/2021PHOTONICS DICTIONARY TERMSquantum opticsThe area of optics in which quantum theory is used to describe light in discrete units or "quanta" of energy known as photons. First observed by Albert Einstein's photoelectric effect, this particle...EDU.photonics.com 3/5/2018photonicsThe technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and...EDU.photonics.com 3/22/2016mandrelA shaft, spindle or any object generally passed through a workpiece to hold, support or shape a particular piece during its machining process or its practical use. In fiber optics, optical fibers are...EDU.photonics.com 1/14/2013optical microphoneLaser-powered telephone device for analog communications that employs a vibrating plastic membrane as a transmitter to modulate laser light piped via optical fibers from a central exchange, omitting...EDU.photonics.com 9/8/2009MEDIAPhotonics on the Showroom Floor and in the Lab - LIGHT MATTERS 02.2018On this month's episode of Light Matters, we take you on a brief tour of the Higgins Laboratories at Worcester Polytechnic Institute (WPI). Quinsigamond Community College and WPI received a $4M grant...Photonics.com 2/21/2018Capasso Group's Optical Harmonic Combs Could Operate as THz SourceResearchers at Harvard's John A. Paulson School of Engineering and Applied Sciences (SEAS) have discovered a new phenomenon of quantum cascade laser frequency combs, which would allow the devices to...Photonics.com 8/10/2018PIC Fundamentals, Design at Heart of AIM Photonics Summer AcademyStudents from large and small size companies and bigger Department of Defense affiliates of the AIM Photonics Institute took part in the recent AIM Photonics Summer Academy at MIT. This was the third...Photonics.com 7/30/2018Light Matters Extra: Lightning Awards Luminate Rochester - 11/2017In this month's Light Matters Extra, we give you an in-depth look at the recent Luminate Lightning Awards. New York’s Lieutenant Governor Kathy Hochul was there and tells us why Luminate is important...Photonics.com 11/17/2017PHOTONICS BUYERS' GUIDE CATEGORIESOptical Communications SystemsSapphire Fiber Optic FibersOptical Talk SetsFiber Optic Local Area NetworksA local area fiber optic network is a data communications network in a clearly defined geographical location, and extending no more than a few miles in length.COMPANIESMicro Laser Systems Inc.We are a manufacturer of Diffraction Limited Fiber Coupled Laser Systems, Optical Systems, and Fiber Optic Systems from 240 nm to 6000 nm. Unique products include various sizes of Fiber Collimators,...Photonics Buyers' GuidePhotonTec Berlin GmbHPhotonTec Berlin GmbH is located in the Center for Microsystems and Materials (ZMM) in Berlin-Adlershof, Germany. We focus on the development, production, and marketing of fiber-coupled diode lasers...Photonics Buyers' GuideEvanescent Optics Inc.Evanescent Optics Inc. acquired the assets and employee group of Canadian Instrumentation & Research Ltd. in August 2009 and continues production and development of the suite of fiber optic...Photonics Buyers' GuideLambda Research Optics Inc. (USA)Lambda Research Optics, Inc. is a leading manufacturer of laser optics with high power thin-film coatings and high precision fabrications. Lambda serves a wide range of industries, such as Biotech,...Photonics Buyers' Guide