Laser Beam Transmission from 10 Million Miles Away Received by Earth

Laser Beam Transmission from 10 Million Miles Away Received by Earth

2023-11-22 08:20:26

Table
  1. Laser Beam from Space Reaches Earth from Vast Distances
    1. The Milestone of 'First Light'
    2. An Era of Optical Communications Unfolding

Laser Beam from Space Reaches Earth from Vast Distances

NASA has heralded a groundbreaking achievement as it successfully received a data transmission via a laser communication test from a staggering distance of nearly 10 million miles, much farther than the Moon's reach from our planet.

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The highly sophisticated Deep Space Optical Communications (DSOC) experiment used a near-infrared laser to send test data to the Hale Telescope at the Palomar Observatory in San Diego County, marking an impressive technological feat.

NASA’s Psyche spacecraft is shown in a clean room at the Astrotech Space Operations facility near the agency’s Kennedy Space Center in Florida on Dec. 8, 2022. DSOC’s gold-capped flight laser transceiver can be seen, near center, attached to the spacecraft. Credit: NASA/Ben Smegelsky

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The Milestone of 'First Light'

This momentous occasion, referred to as "first light," is a critical step forward in the aim to significantly boost the volume of data transmitted across the solar system.

Speaking about the achievement, Trudy Kortes, director of Technology Demonstrations at NASA Headquarters, emphasized its pivotal role in enhancing communications supporting human missions to Mars, expecting a future of high-definition media and livestreaming capabilities.

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An Era of Optical Communications Unfolding

NASA's comparison of optical communications to the revolutionary transition from traditional phone lines to fibre optics demonstrates the anticipated increase in capacity by 10 to 100 times over present spacecraft radio systems.

The Deep Space Optical Communications (DSOC) technology demonstration’s flight laser transceiver is shown at NASA’s Jet Propulsion Laboratory in Southern California in April 2021, before being installed inside its box-like enclosure that was later integrated with NASA’s Psyche spacecraft. NASA/JPL-Caltech

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The DSOC system, first of its kind and implemented beyond the Moon, combines a flight laser transceiver, a ground laser transmitter, and a ground laser receiver.

Embedded within the Psyche spacecraft, which set off on October 13, DSOC met a significant target early in its two-phase mission. The Psyche mission's core objective is to explore the metallic-rich asteroid 16 Psyche residing in the asteroid belt.

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