Photodiode
convert's light into current.
See Also: Diode, Laser Diode, Zener Diode, Diode Test, Photodiode Arrays
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Photodiode
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A high sensitivity receiver in a fiber pigtail coupled package, it includes a high speed InGaAs avalanche photodiode with a high gain TIA in a hermetically sealed coaxial package. It incorporates an LC/UPC pigtail and a flexible printed circuit (FPC). The signal GND and a receptacle are electrically isolated in this APD receiver.
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Fiber Photodiode Power Sensors
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These interfaces provide communication between an attached sensor and a PC or other external control unit. They are designed to be controlled via an external device or operated autonomously using the analog output; there are no controls or display screens.
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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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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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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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Wavelength Meter
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HighFinesse/Ångstrom offers sensitive and compact wavelength meters with a large spectral range for high speed measurement of lasers. The optical unit consists of temperature-controlled Fizeau-based interferometers that are read out by photodiode arrays. The high absolute accuracy is achieved by use of solid state, non-moving optics.
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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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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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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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Pyranometer with Silicon Photodiode
LP471SILICONPYRA
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Pyranometer with silicon photodiade for GLOBAL SOLAR IRRADIANCE measurement.
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350 MHz Preamplifier
SIM914
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Stanford Research Systems, Inc.
The SIM914 350 MHz Preamplifier contains two wide-bandwidth, DC-coupled amplifiers, each with a gain of 5 (14 dB). Its fast rise time, low noise and excellent DC accuracy make it an ideal instrument for amplifying signals like those from photomultiplier tubes and photodiodes.
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Photodetectors
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Detection of weak light pulses on the few-photon level is crucial for many applications. The Menlo Systems' detector portfolio includes PIN photodiodes with low noise RF amplifiers, ultrafast avalanche photodetectors with integrated high voltage supplies, and detectors based on homo- and heterodyne detection.
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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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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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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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Laser Diode
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Is a Polarization Maintaining CWDM Coaxial DFB-LD for CWDM analog communication, CATV return-path, laboratory instrument, and R&D applications. This cost-effective, high reliability DFB laser chip has a selectable wavelength with range between 1270 nm to 1610 nm. The versatile DFB-CWDM also features a built-in InGaAsP monitor photodiode, built-in optical isolator and 4-pin coaxial- pigtailed package, single mode coupling, and an FC/APC connector. Contact Optilab for more information.
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X-Ray And Gamma Detector Systems
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The XR-100CR is a new high performance x-ray detector, preamplifier, and cooler system using a thermoelectrically cooled Si-PIN photodiode as an xray detector. Also mounted on the 2-stage cooler are the input FET and a novel feedback circuit. These components are kept at approximately -55 °C, and are monitored by an internal temperature sensor. The hermetic TO-8 package of the detector has a light tight, vacuum tight thin Beryllium window to enable soft xray detection. The XR-100T-CdTe represents a breakthrough in xray detector technology by providing “off-the-shelf” performance previously available only from expensive cryogenically cooled systems. The XR-100-CdTe is also suited for measuring gamma rays.
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Network OTDR
NFO series
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The NFO OTDR unit injects the laser pulse into the fiber under test and picks up scattered and reflected optical signals by an avalanche photodiode (APD). The unit accepts remote commands from Internet to control all related timing and data acquisition processes. Maximal three wavelengths are available at the NFO with options on 1310, 1490, 1550, and 1625 nm. NFO also has options on dynamic ranges so users can select the most cost effective units for their demands. Radiantech provides an easy use API (Application Program Interface) for NFO so users can design and build their own AP for NFO. Standard NFO API package is for Windows XP or higher. Please contact Radiantech’s sales person to inquire API for another OS.
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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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SparkFun Opto-isolator Breakout
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This is a board designed for opto-isolation. This board is helpful for connecting digital systems (like a 5V microcontroller) to a high-voltage or noisy system. This board electrically isolates a controller from the high-power system by use of an opto-isolator IC. This IC has two LEDs and two photodiodes built-in. This allows the low-voltage side to control a high voltage side.
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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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Two -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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Current to Digital
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Analog Devices’ breakthrough current-to-digital converter technology is backed by award winning expertise to help solve your medical, industrial, and security application needs. Our high speed, high resolution ADC modules enable improved CT scanner data acquisition, photodiode sensors and power monitoring, spectroscopy, and high channel count data acquisition systems.
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Transimpedance Amplifiers
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Artifex Engineering GmbH & Co. KG
Applications include photodetection with PMTs and photodiodes, spectroscopy, Scanning Tunneling Microscopy, ionization detectors, pyro and piezoelectric detectors.
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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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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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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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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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Streak Camera
OptoScope S3C-1
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The S3C-1 is a streak camera based on a semiconductor sensor. Like tube-based streak cameras, the S3C-1 captures changes in light along a line and records the change over time. To record the intensity values, they are sampled and stored with up to 2 GSamples/sec. The line is 65 µm wide and consists of 200 elements along its 5 mm length. Each element consists of a sensitive photodiode with a downstream amplifier.A new and special camera feature is continuous recording. This makes it possible to take recordings of events for which precise information about the time of their occurrence only becomes available after they have taken place. This "post-triggering" simplifies or allows certain applications.
