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Optical Communications is a student-led project aiming to develop the capability to establish high-bandwidth data links over free space. Thus far, the group has successfully transmitted a signal over a distance of 10 km. The group is analyzing the applications of this technology for space to earth downlinks.
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[[File:SSI-1E4_Small (175x175).png|frame|left|Mission patch for the Satellites Team's first successful [[SSI-1E4|10km optical link]], which achieved an optical lock]]
[[File:SSI-1E4-2.png|thumb|175px|left|On a subsequent test, the team was able to bidirectionally encode and decode a string of bits.]]
 
Optical Communications was a student-led project that aimed to develop the capability to establish high-bandwidth data links over free space. The group began work at the beginning of the 2014-2015 academic year, under the leadership of Thomas Teisberg and Logan Herrera. It was initially formed to investigate the possibility of space-based optical communications, with the intent to participate in the NASA [[CubeQuest Challenge]], a competition for small satellite design, but later moved away from the competition design constraints.  
 
The Optical Communications group evolved to focus on the establishment of long-distance optical links, with the eventual goal of integrating this technology into a CubeSat form-factor satellite for the purposes of space-based communication. In its first year of existence, the group developed a system involving mechanized altitude/azimuth mounts, an original receiver device consisting of a Fresnel lens and photodetector, and a MATLAB pointing algorithm based on reference point alignment. The group’s final test of the 2014-15 year resulted in the successful establishment of an optical lock over [[SSI-1E4|10 kilometers]]. The group was able to successfully transmit encoded data over 10 kilometers in August 2015.
 
<noinclude>[[Category:Optical Communications]]</noinclude>

Latest revision as of 04:21, 2 September 2020

Optical Communications
Part of the Optical Communications series
Team Goals
Amateur Optical Communication Record • CubeQuest Challenge
Equipment
OpComms System I • System II • System III • System IV • 3 cm Board
Noteworthy Tests
SSI-1E4 • Test Procedure
Important Concepts
The Field of Optical Communications • Beam Divergence • Pulse Position Modulation • Scintillation • Precision Aiming • Fog • Long Range RF • Optical Internet Backhaul • Signal-to-Noise Ratio
Field Test Locations
W6YX (also see Amateur Radio) • Skyline Boulevard Overlook • Proposed Alternate OpComms Test Sites
People
Dr. Simone D'Amico (Team Advisor) • Elizabeth Hillstrom (Co-Lead) • Sasha Maldonado (Co-Lead) • Dr. Joseph Kahn • Dr. Leo Hollberg
Optical Communications Satellites
FitSat-1 • LADEE • ARTEMIS and SPOT-4 • OICETS • OPALS • JPL 1U Optical Communications Terminal
Astronomy
Las Cumbres Observatory Global Telescope Network • Stanford Astronomy Club • Stanford Student Observatory
Miscellaneous
Tactical Cinderblock
V • E
Mission patch for the Satellites Team's first successful 10km optical link, which achieved an optical lock
On a subsequent test, the team was able to bidirectionally encode and decode a string of bits.

Optical Communications was a student-led project that aimed to develop the capability to establish high-bandwidth data links over free space. The group began work at the beginning of the 2014-2015 academic year, under the leadership of Thomas Teisberg and Logan Herrera. It was initially formed to investigate the possibility of space-based optical communications, with the intent to participate in the NASA CubeQuest Challenge, a competition for small satellite design, but later moved away from the competition design constraints.

The Optical Communications group evolved to focus on the establishment of long-distance optical links, with the eventual goal of integrating this technology into a CubeSat form-factor satellite for the purposes of space-based communication. In its first year of existence, the group developed a system involving mechanized altitude/azimuth mounts, an original receiver device consisting of a Fresnel lens and photodetector, and a MATLAB pointing algorithm based on reference point alignment. The group’s final test of the 2014-15 year resulted in the successful establishment of an optical lock over 10 kilometers. The group was able to successfully transmit encoded data over 10 kilometers in August 2015.