Request InfoMahr Inc.A device that calibrates phase-measuring interferometers has been released by Engineering Synthesis Design Inc. The CaliBallT — a 25.4-mm-diameter silicon nitride ball and kinematics mount — determines errors in the transmission-sphere reference surface. Calibrations can be done in as little as 10 min. It works with any brand or make of transmission sphere and can be used to qualify those with f numbers ranging from f /0.7 to f /11 or beyond. The device measures 42 × 51 × 56 mm and weighs 287 g.See full productRelated content from Photonics MediaARTICLESBioPhotonics Sep/Oct 2022 IssueVersatility in OCT System Design Opens the Door to New Clinical ApplicationsOptical coherence tomography (OCT), a noninvasive imaging technology, is a standard diagnostic tool used in the field of ophthalmology. With the advent of new compact form factors for the modality,...Photonics Spectra March 2023 IssueMicrowave Photonic Filter Shifts Paradigm for Future CommunicationsResearchers from the University of Twente have developed a multifunctional photonic integrated circuit (PIC) that enables programmable filtering functions with a reported record-high dynamic range....PHOTONICS HANDBOOK ARTICLESPhotonics HandbookMeasuring Aspheres: Selecting the Best TechniqueThe benefits of aspheric lenses are numerous: They allow for a reduction in spherical aberrations and are ideal for focusing or collimating light, as they can achieve a low ƒ-number. Aspheres...Photonics HandbookUltraviolet Filters: Past and PresentIn their earliest forms, UV bandpass filters that were optimized for wavelengths less than 400 nm, such as the Schott UG or the Hoya U-series, were constructed of absorbing compounds in glass. Such...Photonics HandbookInterferometry: Measuring with LightAn interferometer is an instrument that compares the position or surface structure of two objects. The basic two-beam division of amplitude interferometer components consists of a light source, a...Photonics HandbookAspheric Lenses: Optimizing the DesignWith the understanding of aspheric lens manufacturing provided in part one of this article, designers have the tools to optimize their aspheres; the next step is to understand how to specify and...WEBINARSPhotonics.com 4/28/2021Interferometers: The Light Source Determines Performance and ApplicationThe practical application of interferometers to optical component and system testing was enabled by the invention of the laser. 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However, they are constrained by the...PHOTONICS DICTIONARY+ TERMSPhotonics DictionaryFizeau fringesFizeau fringes are interference fringes observed in an interferometer, specifically in a Fizeau interferometer. The Fizeau interferometer is named after the French physicist Armand Fizeau, who...Photonics Dictionarylaser opticsLaser optics refers to a broad category of optical components and systems designed for manipulating and controlling laser light. Laser optics play a crucial role in shaping the characteristics of...Photonics DictionaryetalonAn etalon is an optical device that consists of two parallel reflecting surfaces separated by a precise and known distance. It operates based on the principle of optical interference and is used to...Photonics DictionaryMach-Zehnder interferometerA Mach-Zehnder interferometer is an optical device used to measure the phase difference between two collimated beams of light. It is named after the physicists Ludwig Mach and Ludwig Zehnder, who...PHOTONICS BUYERS' GUIDE CATEGORIESMichelson InterferometersFabry-Perot InterferometersA fabry-perot interferometer is a multiple-beam interferometer, usually consisting of two flat plates, with high reflective ability. The plates are set parallel to one another by spacers so that...Fiber CoilsLaser Speckle InterferometersCOMPANIESPhotonics Buyers' GuideNYFORS Teknologi ABNYFORS is your innovative supplier of advanced glass processing and preparation equipment for specialty optical fiber splicing operations. We supply reliable and precise solutions tailored to the...Photonics Buyers' GuideSORL/Space Optics Research Labs LLCSORL/Space Optics Research Labs produces high quality aspheric optical systems and instrumentation for a wide range of research and test applications. We also produce a wide range of reflective...