MOUNTAIN VIEW, Calif., Dec. 6 -- Spectra-Physics Inc. said it will take a $28 million to $33 million pretax charge in the fourth quarter related to certain telecommunications assets. The company said the impaired assets are related to its narrowband filter products and cover fixed assets, operating leases and inventory. Spectra-Physics said it doesn't intend to exit the telecommunications market.Read full articleRelated content from Photonics MediaArticlesModulator Drives Record-Fast Transmission in Face of Data TrafficAlthough silicon photonics holds potential as a platform for optical transceivers, owing largely to its CMOS compatibility, the approach is limited in its electro-optic bandwidth. It also carries...Photonics.com 6/21/2023Optical Switching Technique Sets Ultrafast Bar for Data CommunicationsResearchers working as part of a multi-institution collaboration led by University of Arizona assistant professor Mohammed Hassan achieved what they said are previously unattainable data transfer...Photonics Spectra June 2023 IssueElectro-Optic Modulators Improve Signal Quality and Cancel NoiseDelays in optical data transmission cause inconvenient lag times in communications and interfere with immersive experiences like gaming. Two factors that adversely affect the speed and reliability of...Photonics Spectra December 2023 IssueFiber Optic Tag Enables Efficient All-Optical Link EncryptionIn an advancement that could improve the way that optical distribution networks are maintained, researchers at Shenzhen University have demonstrated an encrypted fiber optic tag for all-optical...Photonics Spectra September 2023 IssueProductsPhase Noise and VCO TesterThe R&S FSPN50 from Rohde & Schwarz is a phase noise analyzer and voltage-controlled oscillator (VCO) measurer for testing commercial point-to-point wireless and microwave communication...Photonics.com 3/19/2024Optical Time Domain ReflectometersThe D-Series of Optical Time Domain Reflectometer (OTDR) solutions from EXFO are advanced field testing tools that deliver highly accurate measurements to characterize and validate fiber links. ...Photonics.com 4/27/2023Motion ControllersThe Galil DMC-3x01x Motion Controller series from Electromate Inc. are single-axis devices featuring Ethernet/RS232 communication and an optional 800-W servo drive. The controllers use a 32-bit...Photonics.com 1/6/2023Single-photon GeneratorThe iSPS compact single-photon generator from Aegiq Ltd. enables high-performance applications in datacenter and lab environments. With its customizable configuration optical fiber output,...Photonics.com 11/28/2022Photonics Handbook ArticlesPlastic Optics: Specifying Injection-Molded Polymer OpticsThe use of precision polymer optics is becoming an increasing necessity today as products demand sophisticated light handling components to achieve desired results. Polymer optics can be thought of...Photonics HandbookNano-Optics Technology: Optical AlchemyOptics today needs alchemy, and the forces that motivate microchip technology are a key reason why. Today, light can transmit and process digital information as well as electricity can — in...Photonics HandbookSpectrum Analysis for DWDM: New Instruments Meet the ChallengeAs system and cable installers try to optimize their links, the preferred method has become high-speed DWDM. This demand for bandwidth has led to the development of new test and measurement...Photonics HandbookLaser Applications TablesPhotonics HandbookWebinarsEmerging Technologies Changing Ophthalmology Access and Point of CareRising cases of ocular disorders are expected to boost the growth of the global ophthalmology diagnostics and surgical devices market. Supporting this growing demand will be new innovations that help...Photonics.com 3/17/2022Reconstituted Beam Helps to Classify Cancerous Tissue in Space-Time Light-Sheet MethodDiouf discusses his team’s investigations of the self-healing (self-reconstituting) capabilities of the space-time light sheet when it interacts with a partially transparent object,...Photonics.com 10/27/2022VCSELs for 3D Sensing Applications: Then, Now, and TomorrowVertical Cavity Surface Emitting Lasers (VCSELs) revolutionized communications systems in the 1990s. As the technology improved, VCSELs began to be employed in sensing applications because of the...Photonics.com 1/11/2022Seeing the Sound: Optical Neural Interfaces for In Vivo NeuromodulationOptogenetics has transformed experimental neuroscience by manipulating the activity of specific cell types with light, enabling in vivo neuromodulation with millisecond temporal resolution. Visible...Photonics.com 1/6/2021Photonics Dictionary TermslatticeIn photonics, a lattice refers to a periodic arrangement of optical elements or structures, often on a microscopic or nanoscopic scale. These optical lattices can be created using various techniques...Photonics Dictionaryfrequency combA frequency comb is a precise and regular series of equally spaced spectral lines, or frequencies, that are generated with great accuracy. The term "frequency comb" is often associated with the Nobel...Photonics DictionaryDigital Imaging and Communications in MedicineDigital Imaging and Communications in Medicine (DICOM) is an international standard for medical imaging created by both the National Electrical Manufacturers Association (NEMA) and the American...Photonics Dictionarymodified chemical vapor depositionModified chemical vapor deposition (MCVD) is a technique used in the fabrication of optical fibers. It is a specialized form of chemical vapor deposition (CVD) that is employed to produce...Photonics DictionaryMediaPhotonics 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 2/21/2018PIC 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: Center for Lighting Enabled Systems and Applications (LESA) - 08.2017On this episode of Light Matters Extra we take you to Rensselaer Polytechnic Institute (RPI) in Troy, New York, and introduce you to researchers at LESA -- the Center for Lighting Enabled Systems and...Photonics.com 8/28/2017Laser Satellite Communications & Optogenetics Help Insomniacs - LIGHT MATTERS 01.07.2015On this week’s show we’ll discuss how optogenetics is advancing sleep research, and how lasers are helping speed up satellite transmissions. But first we’ll learn about a government program fueling...Photonics.com 1/7/2015Photonics Buyers' Guide CategoriesMEMS Fiber Optic SwitchesPlastic Fiber Optic FibersMultipole Fiber Optic ConnectorsPhase MasksIn optics and photolithography, a phase mask refers to a device that modifies the phase of light waves passing through it. The phase mask is used to control the spatial distribution of the light's...CompaniesIPG Photonics CorporationIPG Photonics is the world's leading provider of high power fiber lasers and fiber amplifiers that are revolutionizing performance and utility in a remarkable array of materials processing,...Photonics Buyers' GuideMicro 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' GuidePhotoniCore TechnologiesOur company's vision and mission are to become one of the top three providers in the global fiber laser industry and the space laser communication industry within the next ten years. We aim to...Photonics Buyers' GuideSynopsys Inc., Optical Solutions GroupThe Synopsys Optical Solutions Group provides design tools that model all aspects of light propagation. With intelligent, easy-to-use solutions and an expert support team anchored by optical...Photonics Buyers' Guide