Photodiode
convert's light into current.
See Also: Diode, Laser Diode, Zener Diode, Diode Test, Photodiode Arrays
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One-Dimensional PSD
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Functions according to the Lateral Effect Photodiode principle. It is an analogue device and therefore displays excellent position resolution. The resolution is determined by the system signal-to-noise ratio. It is operated in the biased mode. Typical applications include: distance andheight measurement, alignment, position and motion measurements and vibration studies
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Detectors & Sensors
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Excelitas offers Photonic Detection Solutions ranging from Silicon and InGaAS PINs and Avalanche Photodiodes, Hybrid Receivers, and Photon Counting Modules to address high-performance, high-volume applications across a wide range of markets. Excelitas Thermal IR Sensors represent a broad range of Pyroelectric Detectors, Thermopile Detectors and IR Sensor Modules used for motion detection, presence monitoring, temperature measurement and gas detection.
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Laser Diode Drivers
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Arroyo Instruments offers a broad range of laser drivers to meet your exact test needs. From 100 milliamps to 100 Amps, all of Arroyo Instruments' LaserSource benchtop laser drivers include unique features not found on competing products such as optically isolated photodiode and modulation inputs, programmable PD bias, and both RS232 and USB computer interfaces. The LaserSource also has laser diode protection circuits such as interlock, ESD protection, and hardware limits for current and voltage.
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PIN Diodes
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PIN photodiodes convert light to current – without a bias voltage having to be applied. Silicon is commonly used as an inexpensive detector material in the Vis range. For higher demands, InGaAs is used; it covers the widest spectral range from the Vis to the NIR. We offer silicon carbide as a “solar-blind” detector specifically for the UV range.
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UV Sensors
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With analog (4-20mA, 0-5V, 0-10V) or digital (USB, Modbus) output, also available with Android device (incl. app). SiC photodiode chip based Broadband UV sensitivity or filtered for UVA, UVB, UVC or UV-Index spectral sensitivity. Our sensors are also available with logarithmic signal transduction, linearity from 0 … 1500 mV. Calibration services available at our Berlin facility prior to delivery and after use
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Phototransistors
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Phototransistors are photodiode-amplifier combinations integrated within a single silicon chip. The phototransistor can be viewed as a photodiode whose output current is fed into the base of a conventional transistor. These photodiode-amplifier combinations are put together to overcome the major limitation of photodiodes: unity gain. The typical gain of a phototransistor can range from 100 to over 1500.
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Product
Transducers For Photodiodes
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Photodiodes convert incoming electromagnetic radiation into electrical charge carriers. If photodiodes are short circuited an electrical current (photocurrent) proportional to the incident radiation intensity (number of photons per second) is induced. These photocurrents are generally small and cover the range from femtoampere (fA) to microampere (µA). Signal transducers transform this weak photocurrent to robust standard signals for reliable data transmission and simple data acquisition.
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High-resolution, SWIR megapixel camera
Wildcat+ 1280 Series
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The Wildcat+ 1280 series is based upon a state-of-the-art InGaAs photodiode array with 1280×1024 pixels and 5 μm pixel pitch. The camera offers superior, high-resolution SWIR imaging capabilities, comes in a versatile and industry-proven Wildcat camera package (GenICam compliant) and offers advanced on-board image processing.The Wildcat+ 1280 camera outputs full frame images at 120 Hz via either a CameraLink or USB3 Vision interface.The Wildcat+ 1280 is suitable for semiconductor inspection, display inspection (mobile phone and TV), microscopy and laser beam analysis.Benefits & Features• Compact and industry-proven camera design• High-resolution SWIR imaging• Advanced on-board image processing performance• GenlCam compliant• Flexible optical mount and lens options
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UV-Vis & UV-Vis-NIR Systems
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Our range of powerful and productive UV-Vis and UV-Vis-NIR molecular spectroscopy systems offers options for any optical application. The Cary 60 Spectrophotometer has a unique Xenon flash lamp to enable remote sampling, while the Cary 4000 allows you to measure highly turbid solutions without an integrating sphere. The Cary 8454 photodiode array captures the complete UV-Vis spectrum (190-1100nm) in less than one second.
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Laser Diode Reliability Burn-In / Life-Test System
58602
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Chroma 58602 is a high density, precision multi source measurement Unit (SMU) module with temperature control and exchangeable interface developed for burn-in, reliability and life test of optoelectronic components including laser diodes, VCSELs, VCSEL Arrays, silicon Photonics, photo-diodes and other similar components.
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Product
Compact Juno USB Interface
Juno 7Z01250
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*Virtual laser power meter - From sensor to interface to PC - no power source needed*Plug and play with all standard Ophir smart sensors*Use with StarViewer free Android app to turn your smartphone / tablet into a power meter*Record every energy pulse at up to 10 KHz*Log power and energy, average, statistics, histograms and more with included StarLab application*New: Pulsed Power measurements with Thermopile sensors*New: Low Frequency Power on Photodiode sensors - power measurement based on pulse cycle (for VCSEL)*System Integrator Tools included: LabVIEW VIs, COM Object Interface*Very compact - is just an extension of the smart plug
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Handheld Laser Power & Energy Meter
Vega 7Z01560
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*Compatible with all standard Ophir Thermopile, BeamTrack, Pyroelectric and Photodiode sensors*Brilliant color large size TFT 320x240 display*Clear screen color for work with laser safety goggles*Illuminated keys for working in the dark*Both digital and analog needle display*USB and RS232 output to PC with Statistics package*Select between English and Japanese interfaces*Analog output*Soft keys and menu driven functions with on line help*Log every data point at up to 4000Hz with pyroelectric sensors*Non-volatile data storage up to 250,000 points*Laser tuning screen and power log*2 position kickstand*System Integrator Tools included: LabVIEW VIs, COM Object Interface
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PIN-TIA
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The fiber-optic coaxial PIN-TIA receiver module is designed for SONET/SDH fiber-optical communicationnetworks, using reliable InGaAs PIN photodiode (PD) highly integrated with low noise transimpedence amplifier(TIA) to convert a long wavelength input optical signal into a differential (or single) output. It is a highly reliablemodule with excellent performance.
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PIN Photodiode
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PIN photodiode is a kind of photo detector, it can convert optical signals into electrical signals.This technology was invented in the latest of 1950's. There are three regions in this type of diode. There is a p-region an intrinsic region and an n-region. The p-region and n-region are comparatively heavily doped than the p-region and n-region of usual p-n diodes. The width of the intrinsic region should be larger than the space charge width of a normal p-n junction. The PIN photo diode operates with an applied reverse bias voltage and when the reverse bias is applied, the space charge region must cover the intrinsic region completely. Electron hole pairs are generated in the space charge region by photon absorption. The switching speed of frequency response of photo diode is inversely proportional to the life time. The switching speed can be enhanced by a small minority carrier lifetime. For the photo detector applications where the speed of response is important, the depletion region width should be made as large as possible for small minority carrier lifetime as a result the switch speed also increases.
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40Gb/s DQPSK Receiver
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The integrated DQPSK receiver incorporates an optical phase demodulator (delay-line interferometer or DLI) with 2 pairs of balanced photo-diodes and 2 linear TIAs into a single butterfly package. Compared with the currently available discrete solution in which a separate DLI and a separate receiver are used, the integrated DQPSK receiver eliminates labor intensive fiber routing and coupling (between the DLI and the balanced receiver) as well as the skew control. Moreover, the integrated DQPSK receiver offers a smaller footprint suitable for today’s demanding high speed transponder applications.
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10G APD Photodiodes
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Macom Technology Solutions Holdings Inc.
MACOM offers the highest sensitivity avalanche photodiodes (APD) on the market to satisfy 10Gtelecom and datacom applications. Both front-illuminated and back-illuminated chips are available and usable from 1250 to 1650 nm for bit rates up to 11.3 Gb/s. Proprietary designs enable superior bandwidth, excellent temperature stability and high reliability to support market needs.
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16-element Si photodiode array
S12362-321
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The S12362/S12363 series is a back-illuminated type 16-element photodiode array specifi cally designed for non-destructive X-ray inspection. These are modified versions of our previous products (S11212 series: 1.575 mm pitch). The pitch has been changed to 2.5 mm. The back-illuminated photodiode array is also simple to handle and easily couples to scintillators without having to worry about wire damage because there are no bonding wires and photosensitive areas on the back side.
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Product
Gated Integrator | Boxcar Averager
GIA100
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Artifex Engineering GmbH & Co. KG
The GIA100 gated integrator employs dual monolithic switched integrators. When paired with a photodiode, the boxcar amplifier measures the energy of single optical pulses. The GIA100 design results in very low leakage error, charge injection error and pickup. The precision input stage may be configured for current or voltage inputs.
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High-Speed Analog Output
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High-speed analog output photocouplers (optocouplers) are optically coupled isolators containing a GaAlAs LED on the input side and a PIN photodiode and high-speed amplifier transistor on the output side in a single chip.
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Ambient Light Sensors
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Renesas' ambient light sensors optimize display backlighting, enhance energy efficiency, and improve user experience with ultra-low light sensitivity, low power consumption, and precise spectral response. Our offerings include light-to-digital sensors with IR blocking filters and I2C interfaces, and light-to-analog solutions integrating photodiodes and amplifiers. Designed for automotive, industrial, and medical applications, these sensors deliver reliable performance even in demanding environments.
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Divergent Light Measurement
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The IS1.5-VIS-FPD-800 & IS1.5-IRG-FPD-800 contain 2 photodiodes: a calibrated photodiode for precise power measurement using Ophir meters and a fast photodiode with integral reverse bias circuit for temporal characterization using third-party instrumentation such as oscilloscopes and spectrum analyzers. Their small, 1.5" internal diameter preserves the temporal shape of pulses down to 3.5 nsec for VIS and 6 nsec for IRG. An SMA fiber optic connector is provided for connection to a spectrometer. The large, 20 mm input aperture allows for wide acceptance angles and long working distances, making these spheres well suited for testing VCSELs and other types of laser.
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25G APD Photodiodes
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Macom Technology Solutions Holdings Inc.
MACOM offers the highest sensitivity avalanche photodiodes (APD) on the market to satisfy 28G related applications. The chips are usable from 1250 to 1650 nm for bit rates up to 28 Gb/s and 28 GBd. Proprietary designs enable superior bandwidth, excellent temperature stability and high reliability to support market needs of PAM-4 and 400G Ethernet applications.
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10G APD Photoreceivers
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Macom Technology Solutions Holdings Inc.
MACOM offers high-sensitivity avalanche photodiode (APD) based photoreceivers in a variety of packages, including ROSA, OEM module and instrument-style. A wide range of 10G solutions are available with both multimode and single-mode fiber-coupled products.
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UV Photodiodes
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Active area from 0.06 mm² to 36 mm² and quadrant photodiodes for position detections. Spectral response for broadband UV or filtered for UVA, UVB, UVC or UV-Index. Various entrance optics and housings options available (TO or SMD). Our own SiC photodiode chip production since 2009 also available with VUV sensitivity. PTB (German equivalent of NIST or NPL) measured high radiation hardness. 350°C high temperature stable photodiodes available. Photodiode application guide.
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Product
Highest SNR PDA Miniature Spectrometer
VS70-PDA
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VS70-PDA OEM Photodiode Array Spectrometer is a high performance compact fiber coupled spectrometer covering wide spectral range of 200 to 1000 nm. This VS70 system for industrial applications uses a modified VS70 optical engine with Horiba’s type-IV Aberration-Corrected Flat-Field Holographic Ion-Etched concave grating optimized for UV-VIS and a linear photodiode array.
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Handheld Power & Energy Meter
Nova 7Z01500
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*Compatible with all standard Ophir Thermopile, Pyroelectric & Photodiode sensors.*Single shot energy measurement with thermal sensors.*Optional RS232 computer interface. Works with Ophir's StarCom32 application.*Power and energy logging with graphical display and statistics.*Laser Power Measurement averaging.*Easy to use soft keys, menu driven.*Screen graphics.*Backlight & rechargeable battery.*Analog output.*EMI rejection.*LabVIEW software included.
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Photometers & Colorimeters
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Instrument Systems Optische Messtechnik GmbH
A photometer is used to measure the photometric quantities of illuminance (lx), luminous intensity (cd), luminous flux (lm), and luminance (cd/m²). The integral method and the fast response time of silicon photodiodes means that photometers can achieve an outstanding measuring speed. They are therefore ideal for performing fast goniophotometric measurements. We take great care in the development and production of photometer heads and use innovative amplifier technologies.
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Avalanche Photodiodes
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These avalanche photodiodes (APDs) are silicon photodiodes with an internal gain mechanism. As with a conventional photodiode, absorption of incident photons creates electron-hole pairs. A high reverse bias voltage creates a strong internal electric field, which accelerates the electrons through the silicon crystal lattice and produces secondary electrons by impact ionization. The resulting electron avalanche can produce gain factors up to several hundred.
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SWIR InGaAs Sensors
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Xenics is a vertically integrated SWIR detector and camera company. Xenics designs and develops ROICs (read-out integrated circuits) for SWIR imaging detectors.Furthermore, Xenics develops SWIR imaging detectors based on InGaAs (indium gallium arsenide) photodiode arrays. These SWIR detectors are used in Xenics SWIR camera products, but can also be offered as such to customers who require a detector-based solution. In addition to standard products, Xenics can also offer customized solutions.
