Photodiode
convert's light into current.
See Also: Diode, Laser Diode, Zener Diode, Diode Test, Photodiode Arrays
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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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*Photodiode Energy Sensors
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Ophir photodiode laser energy sensors are able to measure low energy pulses down to 10pJ at frequencies up to 20 kHz. Silicon photodiodes for the UV and visible spectrum and Germanium photodiodes for infrared.
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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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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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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
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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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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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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.
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2D CMOS Image Sensor
Lince6M5
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Lince6M5 is a single chip, fully digital, high speed CMOS active pixel sensor which is designed for maximum flexibility. It has excellent performance in a large variety of applications, ranging from low noise, high dynamic range surveillance, to high speed slow motion analysis, including high resolution machine vision applications. Lince6M5 incorporates a high speed 6.5MP CMOS active pixel image sensor providing both global and rolling electronic shutter, as well as High Dynamic Range (HDR) features. The sensor array utilizes active CMOS pixels with pinned photodiodes to deliver high image quality whilst maintaining the size, cost, and integration advantage of the CMOS technology.
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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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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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Low Input Bias Current Amplifiers (<100 pA)
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Low input bias current op amps are required whenever the difference of currents or voltage is small and needs to be measured accurately. These op amps are used so that the signal is not loaded down by the input of the op amps. Low input bias current op amps are critical for interfacing sensors in applications from photodiodes, pH meters, or other electrometer related functions to downstream electronics. Analog Devices has many precision op amps that fit the definition and range of these applications.
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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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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
Radiometric Probe for UVA Irradiance
LPUVA03…Series
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The LPUVA03 probe measures irradiance (W/m²) defined as the ratio between the radiant flux (W) passing through a surface and the surface area (m²) in the UVA (315 nm…400 nm) spectral range. Thanks to a new type of photodiode, LPUVA03 is blind to visible and infrared light.
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Spectral Response (Spectral Sensitivity) Measurement
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It is used to measure the spectral response (spectral sensitivity) of photoelectric conversion devices (photodetectors / sensors) such as silicon photodiodes and CCD · CMOS image sensors . Measurement in the broadband wavelength region can be performed with low stray light.
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Charge Integrator Amplifiers
AD8488
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Analog Devices’ charge integrator amplifiers convert the charge acquired by X-ray or photodiode detectors to a voltage. The channels are composed of CMOS transistors, using typical high input impedance CMOS gates. The integrators generate charge dependent voltages using a range of selectable capacitance values that accommodate a broad range of input charge values. The integrators are followed by single-ended input to differential output voltage amplifiers where offset and low frequency noise voltages are subtracted from the input voltages.
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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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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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Silicon Pyranometer
LPSILICON-PYRA04
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Pyranometer with silicon photodiode for measuring the GLOBAL SOLAR IRRADIANCE, diffuser for cosine correction. Spectral range 400…1100 nm.
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Light Sensor
NaPiCa
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Panasonic Industrial Devices Sales Company of America
Visible light sensor (Silicon Photo IC) that detects light and converts into electrical current. Consists of a photodiode and built-in amplifier. Optical filter provides spectral response similar to human eye sensitivity. Applications include: LCD Backlight Control, Commercial and Residential Lighting Brightness Control, Security Lighting.
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Handheld Laser Power & Energy Meter
Nova ΙΙ 7Z01550
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*Compatible with all standard Ophir Thermopile, BeamTrack, Pyroelectric and Photodiode sensors.*Large, high definition LCD display.*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 59,400 points.*Laser tuning screen and power log.*2 position kickstand.*System Integrator Tools included: LabVIEW VIs, COM Object Interface.
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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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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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Transimpediance Amplifiers
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The UDT TRAMP products are transimpedance amplifier (current-to-voltage) instruments that provide a low input impedance to accurately measure the short circuit current of phototransducers such as silicon and germanium photodetectors, vacuum photodiodes and photomultiplier tubes. The range includes the economically priced TRAMP, and for ultra precision and accuracy, the TIA-3000.
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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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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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Pulse Characterization Sensors
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Pulse Characterization Sensors provide the ability to see and measure the temporal characteristics of pulsed and CW laser beams. Ophir Fast Photodiode Detectors are designed to convert optical signals into electrical signals which are then measured with third-party instrumentation such as oscilloscopes and spectrum analyzers. Accessories are available to connect to IS6 integrating spheres or fiber optic cables. Attenuating filter accessories are also available to increase their dynamic range. Different models offer silicon, UV enhanced silicon and InGaAs PIN photodiodes, covering a combined spectral range of 193 nm to 1700 nm. Rise times range from 25 picoseconds to 3 nanoseconds. The fast rise times are achieved by an internal reverse bias voltage circuit. Power is supplied by internal batteries and/or an external power supply depending on the model. Detectors should be connected to a 50Ω impedance in order to maintain their nominal rise times. They can be connected to higher impedance loads, but this will result in a significant increase in the rise time. If higher output voltage is required, it is recommended to connect the detector to a trans-impedance amplifier with an Input impedance of 50Ω
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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.
