Photodiode
convert's light into current.
See Also: Diode, Laser Diode, Zener Diode, Diode Test, Photodiode Arrays
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Product
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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Product
Femtosecond Pump - Probe Transient Absorption System
Hatteras
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The Hatteras is first professional system on the market for ultra fast transient absorption pump - probe spectroscopy. Two linear image sensors (multichannel detection) or two photodiodes (singlechannel detection) are placed behind an imaging spectrometer to measure probe and reference pulses, originating from a femtosecond white light (continuum) generator or from an optical parametric amplifier.
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Ultra-Low Noise 2 kHz Photoreceiver w/ Si-PIN Photodiode
PWPR-2K-SI
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Picowatt Photoreceiver series PWPR-2K with switchable gain (10 to the 9th V/A, 10 to the 10th V/A) and a bandwidth from DC to 2 kHz is the perfect choice for cw-measurements, time resolved signal acquisitions and highly sensitive modulated measurements. Si and InGaAs models cover the wavelength range from 320 to 1700 nm.
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Photodiodes
Avalanche
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Similar to photomultipliers, avalanche photodiodes are used to detect extremely weak light intensities. Si APDs are used in the wavelength range from 250 to 1100 nm, and InGaAs is used as semiconductor material in APDs for the wavelength range from 1100 to 1700 nm.
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Photodiode Burn-in Reliability Test System
58606
Test System
The Chroma 58606 PD/APD Burn-in system is a high density, multifunction and temperature controlled module based system for photo diode burn-in and lifetime test. Each module has up to 256 Source Measurement Unit channels which can source current and measure voltage in various scenarios such as one described below. The system can accommodate 7 modules for a total of 1,792 device channels.
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Product
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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Photodiodes & Arrays
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Excelitas utilizes Silicon and InGaAs materials for our photodiodes to provide detection from 220 nm to 1700 nm. These devices are offered in a variety of sizes to meet customer sensitivity and speed requirements. Many different types of photodiodes are available to serve various unique applications.
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Optical Sensors
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Analog Devices optical sensors are optical sensing front ends that include integrated ultra-low noise amplification and high performance photodiodes. These solutions are used to achieve the highest performance for instrumentation, industrial, or clinical applications; or to optimize a solution to achieve the lowest power dissipation at a given performance level for battery powered and portable applications.
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Light-to-Analog Sensors (Voltage)
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Renesas' light-to-voltage silicon optical sensors combine a photodiode array, a non-linear current amplifier and a micropower op amp on a single monolithic IC. Applications for these devices include display backlight control, keypad dimming, anti-glare mirror systems, and industrial and medical light sensing applications.
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Product
Power Meter
TW3211
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Techwin(China) Industry Co., Ltd
TW3211 optical power meter Is a handheld optical power meter, newly released in 2007, which can be used for absolute optical power measurements as well as for relative loss measurements in optical fibers. A Ø1.0mm photosensitive area photodiode is used to significantly improve the stability and the reliability. It features ingenious appearance, a wide range of power measurement, high accuracy, an user self-calibration function and a reference power level storage.
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Product
Spectral Light And Color Meter w/ Flicker measurement
BTS256-EF
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Spectroradiometer for the illuminance (photopic, scotopic, melanopic), spectrum, light color, color rendering index, and flicker. Cosine field of view illuminance measurement for accurate evaluation of extended illumination. Flicker measurement. Spectral measurement technology, required for LED light, color, color rendering, color effects. Photodiode for synchronization to pulse width modulated light and flicker measurement.
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Product
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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High Speed Free Space Optical Detectors
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High speed optical detectors use special photodiodes with high speed electronic circuits to convert fast optical pulses to electrical signals for measurement. Unlike our optical receivers, these detectors do not include a transimpedance amplifier.
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Gesture, Color Sensors & Proximity Detection
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The gesture product family performs advanced gesture detection, proximity detection, digital Ambient Light Sensing (ALS) and color sensing (red, green, blue and clear). It also implements optical pattern generation for barcode transmission and remote controls. The gesture sensor modules provide a highly integrated solution offering five essential functions to enable a touchless interface and to optimize the end user experience of communications and consumer electronics equipment. Gesture detection uses four directional photodiodes to sense IR energy emitted from the integrated LED, converting the measurements of reflected IR light into information about physical
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Product
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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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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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.
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Photodiode Energy Sensors
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Our photodiode laser energy sensors are able to measure low energy pulses down to 10 pJ at frequencies up to 20 kHz. Silicon photodiodes for the UV and visible spectrum and Germanium photodiodes for infrared.
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Product
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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Light Analysis
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Welcome to Thorlabs; below you will find links to detectors and instrumentation that measure the various properties of light, a subset of our entire line of photonics products. Thorlabs offers an extensive selection of instruments that measure the properties of light. Our versatile power and energy meters can be used with over 25 different sensors in order to make NIST-traceable power and energy measurements. If the convenience of a meter is not desired, our selection of detectors includes basic photodiodes (uncalibrated and calibrated), photodetectors (biased, amplified, and avalanche), CCD and CMOS arrays, position detectors, integrating spheres, and photomultiplier tubes. The Beam Characterization category contains beam profilers (camera and scanning slit), a wavefront sensor, spectrometers, and interferometers, while the Polarimetery link leads to a selection of instruments used to measure and control the polarization of light.
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Product
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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Detectors
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A detector head comprises one or more photodiodes each with an appropriate optical bandpass filter, diffuser, lens assembly, integrating sphere or other optical elements. Detector heads are calibrated in the Gigahertz Optik GmbH's calibration laboratory.
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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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Optical Power Meter
HOPM-3211
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Hangzhou Huatai Optic Tech. Co., Ltd.
HOPM-3211 optical power meter is a handheld optical power meter, newly released in 2007, which can be used for absolute optical power measurements as well as for relative loss measurements in optic fiber networks. An Ø1.0mm photosensitive area photodiode is used to significantly improve the stability and the reliability. It features ingenious appearance, wide range of power measurement, high accuracy, user self-calibration function and reference power level storage.
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Detectors
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Thorlabs' photodetectors are capable of detecting light throughout the UV, VIS, NIR, IR, and THz spectral regions. Our photodetectors feature sensors that enable properties such as intensity, power, intensity distribution, wavefront shape, energy, and wavelength to be measured. We offer unmounted photodiodes as well as amplified, biased, and avalanche photodetectors. Thermal power detectors are available unmounted, mounted on a PCB, or mounted on an aluminum plate. Also available are position-detecting sensors, integrating spheres, and an acoustic detection module.
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Hybrids
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ACP's hybrid devices combine the function of multiple components into one small form-factor package. Examples include Wavelength Division Multiplexer (WDM) / Tap Coupler / Isolator hybrids, Photodiode / Tap Coupler hybrids, and Polarization Maintaining Beam Splitter / Circulator hybrids.
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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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Product
UV Index Measurement
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The sglux UV-Index sensors measure the UVI with a worldwide unique low measurement uncertainty of less than 5 %. This makes our sensors compliant to the highest measurement precisions class one according the DIN/EN 5031-11, chapter 8. Since 2018 our product UV-Cosine_UVI (ERYCA) is appointed for public authority tasks: The German Federal Office for Radiation Protection (BfS) services 27 measurement points in Germany for public information of the daily UV-Index. Twenty of these points (Andernach, Chieming, Duderstadt, Fichtelberg, Genthin, Giessen-Wettenberg, Schauenburg-Kassel, Langen, Lueneburg, Munchen-Neuherberg, Norderney, Belm/Osnabrueck, Schauinsland, Tholey, Todendorf, Waldhof-Falkenstein, Waldmuenchen, Wurmberg, Zingst and Zirchow) use the sglux ERYCA to obtain the local UV-Index value. In 2017 ARPANSA (Australian Government’s primary authority on radiation protection and nuclear safety) began replacing the existing biometers with SiC photodiode UV sensors (sglux ERYCA) at all network sites. There are currently thirteen measurement sites in Australia that have been upgraded to the new sensors.
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Photo Detector with Integrated Transimpedance Amplifiers
ADN3010-11
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Analog Devices optoelectronic amplifiers include a range of germanium photodiodes that, through a proprietary process, have been monolithically integrated with silicon transimpedance amplifiers and limiting amplifiers. This process eliminates the need for bond wires connecting the photodiode to the transimpedance amplifier, which leads to improved performance and greater manufacturing reliability. Our portfolio of products also supports the growing need for optical and electrical interface miniaturization.
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High-Speed Digital Output
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High-speed digital output photocouplers (optocouplers) are optically coupled high-speed, totem-pole output isolators containing a GaAlAs LED on the input side and a photodiode and signal processing circuit on the output side in a single chip.





























