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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. 5 …the per-unit cost will be reduced to a small fraction of UNCLASSIFIED//F8A 8FFIQIOP !PSS…
  • p. 8 …Advanced microelectronic solutions are being developed to meet these challenges. The microelectronics developed must be modular…
  • p. 9 …The packaging method that will be chosen must have a small volume and small footprint (6…
  • p. 11 …This reduction will be accomplished by leveraging recent successful tests of a small cryogenic two-phase…
  • p. 13 …methods should be developed to verify quality and structural performance by testing a small subset of…
  • p. 22 …The dry spacecraft mass can be further reduced by two orders of magnitude, and thus the…
  • p. 24 …further indicated that small COTS chemical propulsion systems, with sufficient thrust, would be about a factor…
  • p. 32 …Lightcraft takeoff masses no more than about 20 kg can be accelerated to orbital velocities by…
  • p. 37 …Eliminating such satellite threats has not been examined in detail, but they could be rapidly eliminated…
  • p. 40 …A generic description would be a constellation of small spacecraft each performing its separate function, but…
  • p. 41 UNCLASSIFIED/,, OK 01 I ICIAE 652 one I These array functions can be made coherent over…
  • p. 42 …The coverage spot diameter can be varied by choosing the diameter of the array that is…
  • p. 43 …The relative positions of these picosat elements changes slowly, and only small and infrequent stationkeeping propulsive…
  • p. 44 …can be emplaced and replaced incrementally using laser- powered Lightcraft launch vehicles or even small conventional…
  • p. 45 …small as 40 cm on the ground from GEO. Its field of view can be scanned…
  • p. 50 …use N2, CO2, and small quantities of H2. • Subscale testing will be used to anchor the…
  • p. 53 …kW) and compact size need to be mounted on small tactical airborne platforms like the C…
  • p. 72 …This would be a constellation of small spacecraft each performing its separate function, but these functions…
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SUMMARY OF EMERGENT HIGH-POWER SOLID-STATE AND FREE-
ELECTRON LASER TECHNOLOGIES
Bulk Slab Solid-State Laser
Under the auspices of the Joint High Power Solid-State Laser (JHPSSL) program,
Northrop Grumman broke the all-important 100 kW beam power threshold in early
2009 by firing a 7-amplifier chain bulk slab solid-state laser (BSSSL) that produced a
beam output power of almost 106 kW (see Figure 19). Each amplifier chain is
assembled with several high-gain power modules. The laser operated for more than
five minutes, achieved electro-optical efficiency of 19.3%, and reached full power in
less than 0.6 seconds with a beam quality of better than 3.0, Whereas the test
demonstration saw five minutes of continuous operation for the laser, altogether the
system has been operated at above 100 kW beam power for a total duration of more
than 85 minutes. Adding an eight amplifier chain that the system was designed for will
increase the beam power to 120 kW.
Figure 19. Northrop Grumman's Joint High Power Bulk Slab Solid·State Laser (courtesy of
the Directed Energy Professional Society).
Even though 100 kW beam power has long been the proof-of-principle sought for
weapons-class lasers, it should be noted that many militarily useful effects can be
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Report, from the dia collection. The PDF is mirrored here; the original link is under it. 77 pages are in the text index: search them above, or from the library's search.