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Defense Intelligence Reference Document Laser Lightcraft Nanosatellites

Defense Intelligence Agency · 77 pages · text from the file's own layer

This Defense Intelligence Reference Document from the Defense Intelligence Agency, dated 1 November 2010, was produced under the Advanced Aerospace Weapon System Applications (AAWSA) Program. It describes nanosatellite technologies and proposes launching nanosats into orbit with laser Lightcraft propulsion. It also covers a weapon mission selection study and multi-megawatt laser options. The author recommends that the Department of Defense and NASA bring Lightcraft R&D back to the United States and restart the X-50LR flight demonstration program.

  • p. 3 …Laser Lightcraft Weapon Mission Selection Study .................................. 27 Chapter 4: Summary of Multi-Megawatt Laser Study for…
  • p. 5 …Many of these missions require numerous small spacecraft in a constellation or "swarm." These include orbital…
  • p. 7 …Simple, effective methods of thermal control are essential to keep the nanosat operational during extreme temperature…
  • p. 8 …GUIDANCE, NAVIGATION AND CONTROL Guidance Navigation and Control (GN&C) subsystem key technologies and concepts have…
  • p. 13 …Streamlined testing is needed for up to 100 or 1000 nanosats per mission. Performing a complete…
  • p. 14 …the mission lifetime. The remote agents achieve this goal by monitoring and appropriately controlling nanosat subsystems…
  • p. 33 …Thus, the selected Lightcraft missions are launch vehicle missions involving 29 UNCLASSIFIED//F&R 8FFI&I…
  • p. 40 …An air-launched Lightcraft launch vehicle mission, involving the transport of lasers and Lightcraft on medium…
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Master Oscillator, Power
Amplifier (MOPA)
Fiber coupled
pump modules
Master Oscillator (frber
oscillator, or diode laser)
(6+1) to 1
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l
Doped double-clad gain
f7
/High power endcap
Figure 22. Typical HPFL MOPA Design (courtesy of the Directed Energy Professional
Society).
State of the Art in Fiber Combining
Passive phasing:
far field-mteling & coupling
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, Fiber Laser Array Hexagonal Beam Director
Spectral Beam Combining: fibers at
different wavelengths bu\same direction
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•
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Talbot: self-imaging coupling
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MOPA: master feeds amps & active
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Figure 23. Fiber Laser Beam Combining Techniques (courtesy of the Directed Energy
Professional Society).
54
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Report, from the dia collection. The PDF is mirrored here; the original link is above. 77 pages are in the text index: search them above, or from the library's search.