Blog

Advanced Research in Telecommunication Systems (ARTES)

Overview The European Space Agency’s Advanced Research in Telecommunication Systems (ESA’s ARTES) is a program focused on developing products and services…

Read More

5D Ultrafast Imaging

Overview Ultrafast multidimensional optical imaging has important applications in the detection of the rapidly occurring phenomena found in biology, chemistry, and…

Read More

Coherent Orthogonal Optical Frequency Division Multiplexing (CO-OFDM)

Overview Coherent Orthogonal Optical Frequency Division Multiplexing (CO-OFDM) is a type of WDM technology that uses the mathematical principle of orthogonality to send…

Read More

Geostationary Orbit (GEO)

Overview Geostationary orbit, also known as geosynchronous equatorial orbit (GEO), is the region of space surrounding earth above 35,786 km. Satellites…

Read More

Global Positioning System (GPS)

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…

Read More

BlackJack LEO Constellation

Overview Blackjack is a DARPA program that will replace the old National Security Space (NSS) satellite infrastructure in GEO with a mesh grid…

Read More

Adaptive Optics

Overview Adaptive optics (AO) are optical devices or technologies used to correct wavefront distortions on a fast timescale (100 – 1kHz).…

Read More

What Are Physical Limitations of FSO?

Obstructions Flying birds, trees, and tall buildings can temporarily block a single beam when it appears in line of sight (LOS)…

Read More

Bit-Error Rate (BER)

Overview The bit-error rate (BER) is the number of countable bit errors encountered in a data stream over a certain period…

Read More

Lack of Side Lobes

Overview Side lobes are additional local maxima patterns found in antenna sources which are separate from the main maxima or signal.…

Read More