Overview Free-space optical communications are typically performed in free space, such as air and vacuum, due to the high transmissivity of both mediums in the telecom waveband (1510 to 1600 nm). ...

Overview The Ground-Based Electro-Optical Deep Space Surveillance (GEODSS) System is a series of space-observing ground stations in the United States and the Indonesian-Pacific. The GEODSS System ...

Overview InterSymbol Interference (ISI) is a kind of distortion that occurs when one or more symbols (pulses in digital baseband transmission) interfere with subsequent signals. This can cause noise ...

Overview FSO communication is not always stationary. Think of an on-the-ground ground-to-space communication station, such as the ones at Goddard. What if optical communication was needed somewhere ...

Overview The Field Of View (FOV) is the actual observable area of an optical system like the human eye or a camera. This area is often expressed as the maximum angular size of an optical system as ...

Overview Cailabs is a photonics company based in Rennes, France, that focuses on designing and implementing light shaping technologies. Cailabs' products and solutions include LiDAR improvement, ...

Overview Light Detection and Ranging (LiDAR) is a remote sensing and measuring technique that uses a laser to measure the distance to a target and observes the reflected light. Different surfaces will ...

Overview Below is a list of acronyms commonly used in free-space optics. ACM Atmospheric Channel Monitoring AFTS Airborne Flight Test System AIT Australian Institute of Technology AO Adaptive Optics ...

Galileo Satellite Constellation: Overview Galileo is a Medium Earth Orbit (MEO) satellite constellation consisting of 24 operational satellites, with an additional 6 in reserve. Positioned ...

Overview The Global Positioning System (GPS) is a MEO satellite constellation approximately 20,000 km above the surface of the Earth. The US government originally developed GPS for military purposes ...