JOEL WILLIAMS, ASSOCIATE EDITOR [email protected]A laser-based space communication system developed by researchers at Chalmers University of Technology uses an almost noiseless preamplifier to improve reach and data rates for space communications. The research has implications for technologies such as intersatellite communication, deep-space missions, and Earth monitoring with lidar. The Chalmers team’s system overcomes losses over large distances in space by significantly increasing the sensitivity of the receiver, while encoding information onto a single wave, which, along with a pump wave at a different frequency, generates a...Read full articleRelated content from Photonics MediaArticlesSignal Processing Algorithms Cut Turbulence in Free-Space CommunicationsResearchers from Aston University and Glasgow University have created signal-processing algorithms to help mitigate the impact of turbulence in free-space optical experiments. They used commercially...Photonics Spectra March 2023 IssueUrsula Keller Awarded Marcel Benoist Prize: People in the News: 09/14/22Ursula Keller was named as the recipient of the Swiss Science Prize Marcel Benoist for her work in ultrafast lasers. The prize is often referred to as the “Swiss Nobel prize” and is...Photonics.com 9/14/2022SPAD Elevates Spatiotemporal Resolution in Conventional MicroscopesImage scanning microscopy (ISM), a superresolution technique enabled by the advent of fast and compact detector arrays, provides signal-to-noise ratio (SNR), optical sectioning, and spatial...Photonics.com 2/23/2024Multicore Waveguides Herald Optimized Photonic, Quantum ChipsA fabrication technique developed by researchers at the University of Oxford enabled the rapid production of waveguides in a chip with precisely controlled 3D cross sections that exhibited changing...Photonics Spectra October 2022 IssueProductsModular Beam ExpanderOptical Surfaces’ pre-aligned large diameter beam expander modules enable complex 5-degrees of freedom set-up in a matter of minutes. The modular beam expander assembly components include...Photonics Spectra September 2023 IssueVital Sign Measurement PhotodiodeThe TOPLED® D5140, SFH 2202 photodiode from ams OSRAM provides high sensitivity for wearable devices and vital sign measurement. With higher sensitivity to visible light in the green part...BioPhotonics Jul/Aug 2023 IssueTunable Pulsed Nanosecond LaserThe Peacock XT 355 from Quantel Laser is a tunable pulsed nanosecond laser source in the visible and NIR wavelengths. The device includes a Q-smart series Nd:YAG laser pumping an optical...BioPhotonics Sep/Oct 2023 IssueWavefront SensorsThe SHSCam wavefront sensors of the AR, HR, SHR and UHR series from Optocraft GmbH are now available in two versions with spectral ranges from 355 to 800 nm and 800 to 1064 nm. The SHSCam...Photonics Spectra October 2022 IssuePhotonics Handbook ArticlesWhat Is Photonics?Photonics is the study of light and other types of radiant energy whose quantum unit is the photon. The impact of photonics on research, technology, navigation, culture, astronomy, forensics, and...Photonics HandbookLaser Safety: Important ConsiderationsWhen purchasing an industrial laser system, the astute buyer will look for a Class 1 laser product — a system where the laser beam hazard is completely enclosed and there is no potential laser...Photonics HandbookIndustrial Lasers: An Introduction to Process QualificationMaterials processing with lasers is actually a broad term for a diverse range of applications. The major categories of these uses, and the lasers that service them, are summarized Table 1. At one...Photonics HandbookVibration Control: Limiting Mechanical NoiseIn general, there are three common approaches to reducing mechanical excitation of photonic systems. The first is identifying the sources of vibration and implementing ways to eliminate or reduce...Photonics HandbookWhite PapersNonlinear Crystal Selection and SpecificationA key task faced by engineers using nonlinear crystals is the correct selection and effective specification of the appropriate NLO crystal for a particular laser design or application. GAMDAN Optics...Photonics.com 11/17/2023Innovating the Tunable Light Source - How the Tunable Laser System is Applied in Fluorescence MicroscopyThe market for the tunable light source is ever expanding due to its uses in countless fields, such as the inspection industry, machine visioning, and a wide range of optical experiments....Photonics.com 12/2/2022Fast Axis Collimator Lenses (FACs) - The Essential Components for Laser DiodesWe started developing FACs more than 15 years ago. The result is highly automated in-house processes which allow for competitive prices – even with high volumes. Diode lasers are efficient, compact,...Photonics.com 12/2/2022Mirrors for Big and Scary FS, PS LasersWhile high laser-induced damage threshold is a buzzword when talking femtosecond & picosecond optics, it is not (only) the nominal LIDT value that matters. Color-change effect is an arch-enemy and a...Photonics.com 4/12/2024WebinarsPerspectives on CommunicationsPhotonics Media presents two perspectives on communications, one provides an overview of quantum theory of optical communications, and the other discusses confronting the challenge of creating...Photonics.com 2/16/2012Avalanche Photodiodes – Design and ApplicationsThe high-gain properties in avalanche photodiodes (APDs) make these devices an ideal choice for low-light-level detection in optical communications, spectroscopy, range finding and many other...Photonics.com 9/29/2020From Theory to Practice: Coherent Beam Combining's Impact on Laser TechnologyThis presentation shines a spotlight on the transformative laser technology known as coherent beam combining (CBC). While this technology has been known for decades, it only recently has been...Photonics.com 2/15/2024Laser Transmitters for Fiber Optic CommunicationsFREE WEBINAR Dr. Hamid Hemmati Supervisor, Optical Communications Group Jet Propulsion Laboratory California Institute of Technology In this talk, Dr. Hemmati will cover...Photonics.com 3/28/2013Photonics Dictionary Termsoptical noiseOptical noise refers to undesirable fluctuations or disturbances in an optical signal that can affect the quality or integrity of the transmitted information. This type of noise is particularly...Photonics DictionaryoptoelectronicsOptoelectronics is a branch of electronics that focuses on the study and application of devices and systems that use light and its interactions with different materials. The term "optoelectronics" is...Photonics Dictionaryoptical switchingOptical switching refers to the process of controlling the routing or transmission of optical signals within a network using various techniques to selectively switch or redirect optical paths. This...Photonics Dictionaryrare earth dopantsRare earth dopants refer to elements from the lanthanide series, also known as rare earth elements, that are intentionally introduced into the crystal lattice of a material to modify its properties....Photonics DictionaryMediaCapasso Group Embeds, Projects Independent Images on MetasurfaceMembers of the Capasso Group at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have successfully encoded multiple holographic images in a metasurface. The separate...Photonics.com 8/9/2018Tech Transfer Programs Bridge Gap Between Industry and ResearchTechnology Transfer Programs are often a concerted effort to share skills, knowledge, technologies, methods of manufacturing, samples of manufacturing, and facilities among governments or...Photonics.com 6/19/2018LASEROPTIK Blockbuster 4KWelcome to the movies and inside the home of laser optics and coatings! Get an impression of our daily routine and enjoy our thin films film stars ...Photonics.com 6/20/2023Telecentric Lenses - Shanghai OpticsTelecentric Lenses are widely used in metrology instruments, laser marking systems, and AOI (Automatic Optical Inspection) machines. Here’s a 360 view of one of our custom Telecentric Lenses which...Photonics.com 12/6/2022Photonics Buyers' Guide CategoriesOptical Communications SystemsFiber Optic AmplifiersRaman Fiber Optic AmplifiersFiber Bragg GratingsA fiber Bragg grating is a type of optical filter that is inscribed or "written" into the core of an optical fiber. It consists of a periodic modulation of the refractive index along the length of...CompaniesFOCtek Photonics Inc.FOCtek provides customers with all types of custom manufactured lenses, Precision Optical Components, Polarizing Optics, Prisms, Filters, Coatings, Optical Systems, Crystals, Nonlinear Crystals,...Photonics Buyers' GuideOhara CorporationOHARA manufactures more than 130 environmentally safe optical glass types, free of both lead and arsenic. More than 300 tons of optical glass are melted per month, available in the following forms of...Photonics Buyers' GuideExcelitas Technologies Corp.Excelitas Technologies® Corp. is a leading industrial technology manufacturer focused on delivering innovative, market-driven photonic solutions to meet the illumination, optical, optronic,...Photonics Buyers' GuideCASTECH INC.CASTECH is a recognized leading supplier of nonlinear optical crystals, laser crystals and precision optical components for laser, telecom, medical, analysis and detector markets. Products...Photonics Buyers' Guide