Request InfoAMS-TAOS USA Inc.Texas Advanced Optoelectronic Solutions (Taos) has introduced the TSL238T, a light-to-frequency converter that combines a silicon photodiode and a current-to-frequency converter on a single monolithic CMOS integrated circuit. Output is a square wave (50% duty cycle) with frequency directly proportional to irradiance on the photodiode. The digital output allows direct interface to a microcontroller or other logic circuitry. Temperature-compensated for the 320- to 700-nm range, the device responds from 320 to 1050 nm and operates from –25 to 70 °C. It is supplied in a compact surface-mount...See full productRelated content from Photonics MediaPRODUCTSBioPhotonics Jul/Aug 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...Photonics Spectra March 2024 IssueSilicon PhotodiodeThe MT03-072 from Marktech Optoelectronics is a quadrant silicon photodiode that can be used for applications including beam centering, beam nulling, position centering, beam alignment, optical...Photonics.com 2/23/2024PIN PhotodiodeThe VEMD2704 from Vishay Intertechnology is a silicon PIN photodiode that can be used with green LEDs for optical heart rate detection and red LEDs for pulse oximetry applications. Coming in a 2.0 mm...Promoted Content February 2023 IssueVectorStar™ Opto-Electronic VNAHigh-speed data rate testing involves photodetector and modulators that tackle a bandwidth of at least 110 GHz. For testing and characterizing devices like TOSA, ROSA, BOSA, and even on wafer SipH...ARTICLESPhotonics.com 4/8/2024Project HiFi Addresses Quantum Frequency ConversionIn the joint project “HiFi — Highly integrated quantum frequency converter of highest fidelity based on innovative laser, fiber and production technology” funded by the German...Photonics Spectra November 2023 IssueNovel Integration Helps Solve Imaging BottleneckEngineers at imec have integrated a pinned photodiode (PPD) structure in thin-film image sensors. According to the researchers, the addition of a pinned-photogate and a transfer gate into the...BioPhotonics Jul/Aug 2022 IssueExpanding the Range: Wearables Enable the Next Level of Mobile Health Data MonitoringThe next generation of wearable devices will no longer be created only for the fitness-conscious to monitor their daily steps or heart rate on a smartwatch. Increasingly sophisticated photonic...Photonics Spectra May 2023 IssueNovel Photodiode Cuts Excess Noise, Enhances Detection EfficiencyResearchers at the University of Sheffield designed and developed an avalanche photodiode (APD) with significant potential for low photon detection. The highly sensitive gallium arsenide...PHOTONICS HANDBOOK ARTICLESPhotonics HandbookDetectors: Options for Low-Light ApplicationsDeveloped in the early 1990s, the silicon photomultiplier (SiPM) is a solid-state photodetector whose sensitivity to light rivals that of a photomultiplier tube (PMT) in a regime where a few hundred...Photonics HandbookSelecting a Photodetector: Using WITS$ as a Rough GuideLight is a versatile tool for investigating physical and chemical processes in nature. Any specific system being analyzed may, through the light it emits or reflects, communicate information about...WEBINARSPhotonics.com 1/18/2022Si/SiN-Integrated Photonics for Lidar, Quantum, and SensingThe integrated photonics market is a fast-growing domain whose main drivers are the internet and data centers. Photonics-based transceivers are the backbones of today’s internet connectivity...Photonics.com 1/17/2024Packaging of Integrated Photonics: From Design to ProductionHeinemann showcases state of the art design and execution of integrated photonic packages. He reports on technologies for high efficiency optical coupling between semiconductors and fiber array units...Photonics.com 1/12/2023Photonic Integrated Recurrent Neural Network Based on Frequency MultiplexingReservoir Computers (RCs) are brain-inspired algorithms based on recurrent neural networks where only output weights are tuned, while internal weights remain untrained. VLC Photonics recently...Photonics.com 1/9/2023Small VCSELs Drive a Growing Field of ApplicationsVCSELs have increasingly become a fixture in smartphone and consumer electronic applications such as proximity sensing or face recognition, and recent advancements have only made these compact lasers...PHOTONICS DICTIONARY+ TERMSPhotonics DictionaryCMOS cameraA CMOS camera refers to an imaging device that employs a complementary metal-oxide-semiconductor (CMOS) image sensor to capture digital images. CMOS cameras have become ubiquitous due to their low...Photonics Dictionaryanalog-to-digital converterA device that converts an analog signal, that is, a signal in the form of a continuously variable voltage or current, to a digital signal in the form of bits.Photonics Dictionaryfiber laserA fiber laser is a type of laser in which the active gain medium is an optical fiber doped with rare-earth ions such as erbium, ytterbium, or neodymium. Fiber lasers generate coherent light through...Photonics Dictionarysecond-order nonlinear optical propertiesSecond-order nonlinear optical properties refer to a class of phenomena exhibited by certain materials in response to intense light, typically in the realm of optics and photonics. Nonlinear optical...VIDEOSPhotonics.com 7/28/2020Introduction to Photodetectors - Hamamatsu CorporationPhotodetectors—such as photodiodes (PDs), avalanche photodiodes (APDs), photomultiplier tubes (PMTs), and silicon photomultipliers (SiPMs)—are essential components in a vast array of modern...Photonics.com 4/6/2016Marktech Optoelectronics Custom Engineering CapabilitiesMarktech Optoelectronics is a leading manufacturer of UV visible, near-infrared, and short wavelength infrared (SWIR) emitters, detectors, and materials including InP epiwafers. Marktech maintains an...PHOTONICS BUYERS' GUIDE CATEGORIESImage ConvertersCopper-to-Fiber System Fiber Optic ConvertersScan ConvertersA-D/D-A Fiber Optic ConvertersCOMPANIESPhotonics Buyers' GuideTeledyne Judson TechnologiesTeledyne Judson Technologies (TJT) is a global leader for IR sensors from the Visible to VLWIR spectrum. Two-dimensional FPAs (InGaAs, InSb, and MCT) and Integrated Dewar Cooler Assemblies (IDCAs)...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' GuideFermionics Opto-TechnologyFermionics Opto-Technology is an independent manufacturer of InGaAs photodiodes for data, voice, and video communications; large-area photodiodes for instrumentation and sensing applications; optical...Photonics Buyers' GuideMKS Ophir, Light & MeasurementOphir is a brand within the MKS Instruments Light & Motion division. The Ophir product portfolio consists of laser and LED measurement products, including laser power and energy meters, laser...