Optical Communications with InGaAs Quadrant Photodiodes
Terrestrial and Satellite Free Space Optical Communication System success is predicated on the Pointing, Acquisition, and Tracking (PAT) mechanisms to align multiple nodes in dynamic spatial/temporal systems. Successful PAT operation in point-to-point transmission is realized through the beacon channel InGaAs quadrant photodiodes.
As satellite-to-satellite laser communication constellations have become widespread in Low Earth Orbit (LEO), Medium Earth Orbit (MEO), and Geostationary Equatorial Orbit (GEO), precise bidirectional transmission becomes imperative. New and emerging technologies such as the CubeSat with their SWaT structure are readily serviced by quadrant photodiode miniaturization to facilitate laser bidirectional communications.
An online article, entitled “Free Space Optical Communications in Terrestrial & Satellite Systems with an InGaAs Quadrant Photodiode,” appears on the GPD Optoelectronics website.
About GPD Optoelectronics
Founded in 1973, GPD Optoelectronics began by making high-quality germanium transistors, but since the early 1980s the company manufactures both germanium and indium gallium arsenide photodiodes and multi-element photodetectors.
To request more information or a quotation for these or other GPD products, contact IL Photonics.