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A photodiode is a two-electrode, radiation-sensitive junction formed in a semiconductor material in which the reverse current varies with illumination. Photodiodes are used for the detection of optical power and for the conversion of optical power to electrical power.

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Teledyne Judson Technologies
Teledyne Judson Technologies - Montgomeryville, PA
Designs and manufactures IR detectors for the 0.5 to 24 micron range. Products include InGaAs, Ext-InGaAs, InAs, InSb, PC&PV HgCdTe detectors, linear and 2D arrays with a wide range of detector cooling options for defense, security/safety, chemical and biological detection, semiconductor inspection, life science, and spectroscopy markets.
Stock Manufacturer
LaserPoint srl
LaserPoint srl - Vimodrone, Italy
LaserPoint manufactures laser power and energy meters for laser measurements with high accuracy up to multi-kilowatts optical power level. We also provide patented high-tech solutions to measure ultrafast lasers down to femtosecond pulse duration and high repetition rates up to MHz range.
Stock Manufacturer
Opto Diode Corporation
Opto Diode Corporation - Camarillo, CA
Standard and custom photodetectors and high-quality VIS and IR LEDs. Our advanced performance sensors operate from the extreme ultraviolet (UV) to the mid-infrared (mid-IR). Photodetectors provide high-energy particle, electron, x-ray, and UV detection; plus excellent mid-IR sensitivity to discriminate gases, detect heat, sparks, and flames.
Stock ManufacturerCustom Manufacturer
Chunghwa Leading Photonics Tech Co. Ltd.
Chunghwa Leading Photonics Tech Co. Ltd. - Taoyuan, Taiwan
Manufacturer of InGaAs sensors. Offers SWIR image sensors and linear sensors, PIN photodiodes and APDs with a wavelength of 900 to 1700 nm. We offer visible and extended wavelength InGaAs products for the applications of power monitoring, imaging, semiconductor inspection, spectrometer, sorting, HSI, and remote sensing. Excellent quality at a reasonable price.
Stock ManufacturerCustom ManufacturerDesigner
CSRayzer Optical Technology Co. Ltd.
CSRayzer Optical Technology Co. Ltd. - Wuhan, China
Optical devices supplier and manufacturer of acousto-optic modulators, acousto-optic frequency shifter, avalanche photodiodes, fiber coil and ASE source, couplers, isolator, circulator, FRM, WDM, narrow linewidth laser diode, semiconductor optical amplifier, EDFA, used for for fiber laser, sensor systems, and FOG.
Stock Manufacturer
Excelitas Technologies Corp.
Excelitas Technologies Corp. - Waltham, MA
Excelitas Technologies Corp. is an industrial technology manufacturer focused on delivering innovative, market-driven photonic solutions to meet the illumination, optical, optronic, sensing, detection and imaging needs of our OEM and end-user customers.
Stock ManufacturerCustom Manufacturer
Hamamatsu Corporation
Hamamatsu Corporation - Bridgewater, NJ
Importer and distributor of photonics components and subsystems for use in instrumentation. Products include photomultiplier tubes, solid-state photodetectors, IR detectors, image sensors, scientific cameras, light sources, and x-ray solutions.
Stock Manufacturer
Laser Components USA Inc.
Laser Components USA Inc. - Bedford, NH
Supplier of avalanche photodiodes and modules (Si, InGaAs), IR detectors (InGaAs, PbS, PbSe, pyroelectric), photon counting modules, laser diodes and modules (different wavelengths and power), pulsed laser diodes (905 and 1550 nm), laser diode drivers, laser optics, spatial light modulators, polarizers, UV LEDs and glass filters.
Custom ManufacturerSupplier/Distributor
ActLight SA - Lausanne, Switzerland
Advanced Photonix - Camarillo, CA
Albis Optoelectronics AG - Rueschlikon, Switzerland
ALPHALAS GmbH - Goettingen, Germany
ams OSRAM - Premstaetten, Austria
AP Technologies Ltd. - Bath, United Kingdom
APIC Corp. - Culver City, CA
Apogee Instruments Inc. - Logan, UT
Applied Optoelectronics Inc. (AOI) - Sugar Land, TX
Ashine Industries Inc. - Toronto, Canada
Centronic Ltd. - Croydon, United Kingdom
Clairex Technologies Inc. - Plano, TX
CMC Electronics - Montreal, Canada
Detection Technology Plc - Espoo, Finland
ElFys Inc. - Espoo, Finland
Espros Photonics AG - Sargans, Switzerland
First Sensor Inc. - Westlake Village, CA
GPD Optoelectronics Corp. - Salem, NH
Hitachi High-Tech America Inc., Optical Communications - Schaumburg, IL
HTE Labs - San Jose, CA
ID Quantique - Geneva, Switzerland
Inject Enterprise - Saratov, Russia
Isocom Ltd., Optoelectronics Div., Power Products - Peterlee, United Kingdom
Kolmar Technologies Inc. - Newburyport, MA
Laser Components SAS - Meudon, France
LD4B UAB - Vilnius, Lithuania
Light in Motion LLC - Milpitas, CA
Lynred - Veurey-Voroize, France
Marubeni America Corp. - Santa Clara, CA
Masimo Semiconductor - Hudson, NH
Necsel IP Inc. - Pennington, NJ
nortus Optronic GmbH - Woerth am Rhein, Germany
OgMentum Inc. - Stateline, NV
Optoway Technology Inc. - Hsinchu, Taiwan
OSI Optoelectronics Inc. - Hawthorne, CA
Phase Sensitive Innovations Inc. - Newark, DE
Photek Ltd. - St. Leonards On Sea, United Kingdom
Stanley Electric Co. Ltd. - Tokyo, Japan
Texas Photonics Inc. - Rowlett, TX
Union Optronics Corp. - Taoyuan, Taiwan
Wooriro Co. Ltd. - Gwangju, South Korea
X-FAB Semiconductor Foundries GmbH - Erfurt, Germany

  • photodiode A two-electrode, radiation-sensitive junction formed in a semiconductor material in which the reverse current varies with illumination. Photodiodes are used for the detection of optical power and for the conversion of optical power to electrical...
  • photovoltaic detector
  • photodetector A photodetector, also known as a photosensor or photodiode, is a device that detects and converts light into an electrical signal. Photodetectors are widely used in various applications, ranging from simple light sensing to more complex tasks such...
  • MSM photodiode A metal-semiconductor-metal (MSM) photodiode is a type of photodetector that consists of metal electrodes on a semiconductor material. Unlike the more common PIN photodiodes, which have a P-type and an N-type semiconductor layer, the MSM photodiode...
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