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Discovery Semiconductors’ Photodiodes Are Good Travelers

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EWING, N.J., June 4, 2012 — Discovery Semiconductors’ high-speed InGaAs photodiode and balanced photodiodes have been found robust after 18 months on the International Space Station.

The photodiodes were part of the Materials International Space Station Experiment 7 mission, which launched Nov. 16, 2009, on the space shuttle Atlantis. They returned June 1, 2011, on the Endeavor space shuttle. NASA’s Langley Research Center launched them as part of its lidar transceiver components and recently released them to Discovery Semiconductors for further study.

“Over the next few months, we will be studying carefully not only the electro-optical characteristics of these InGaAs photodiodes, but also other parts of the modules such as fiber optic cables, fiber optic connectors, metal housings, millimeter-wave substrates, solder joints, amongst other things,” said Abhay Joshi, president and CEO of Discovery Semiconductors. “This data will allow us to design even better and rugged InGaAs photodiode modules for future space flights.”

For more information, visit: www.discoverysemi.com
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Published: June 2012
Glossary
ingaas photodiode
An InGaAs photodiode refers to a photodetector device that is constructed using a semiconductor material composed of a combination of indium (In), gallium (Ga), and arsenic (As). The term InGaAs stands for Indium Gallium Arsenide, and it is a ternary compound commonly used in the fabrication of photodetectors sensitive to infrared (IR) wavelengths. Key points about InGaAs photodiodes: Material composition: InGaAs photodiodes are made from the semiconductor material InGaAs, which is a...
lidar
Lidar, short for light detection and ranging, is a remote sensing technology that uses laser light to measure distances and generate precise, three-dimensional information about the shape and characteristics of objects and surfaces. Lidar systems typically consist of a laser scanner, a GPS receiver, and an inertial measurement unit (IMU), all integrated into a single system. Here is how lidar works: Laser emission: A laser emits laser pulses, often in the form of rapid and repetitive laser...
photonics
The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
Abhay JoshiAmericasbalanced photodiodesBusinessDiscovery Semiconductorselectro-opticalfiber optic cablesfiber optic connectorsfiber opticsImagingInGaAs photodiodeLangley Research Centerlidarlidar transceiverMaterials International Space Station Experiment 7 missionNASANew JerseyOpticsphotodiodesphotonics

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