Key Takeaways Deep space optical communication (DSOC) uses laser-based systems for high-bandwidth, interplanetary data transfer. NASA’s DSOC project achieved a 266 Mbps downlink from 19 million miles using photon-efficient modulation and precision optics. The system includes a dual-wavelength flight transceiver, ground-based multi-laser uplink, and photon-counting receiver at Palomar Observatory. Key challenges include beam stability, extreme […]
Introduction Optical communication in space represents a transformative shift from traditional radio frequency (RF) transmission to high-speed, laser-based data exchange. Using light instead of radio waves, these systems can send vast amounts of data across interplanetary distances with unparalleled efficiency. Collectively referred to as Free-Space Optical Communication (FSOC), this technology uses modulated laser or LED […]
The Ritchey Chrétien telescope, a reflecting telescope in the Cassegrain system, reduces spherical aberration and coma for clearer viewing.
