Defense Intelligence Reference Document Laser Lightcraft Nanosatellites

“BEAMS”49 pages

• p. 3 …Free-Electron Laser Electron Beam Phase-Space Evolution ....................... 59 Figure 31. Recirculating-Beam FEL System ........................................................... 60…
• p. 4 …HEL Beam Pointer/Tracker ................................................................... 65 Figure 35. Basic Shared Aperture Beam Control System ......................................... 66 Figure 36…
• p. 7 …This can only be achieved via laser propulsion in which the laser beam energy that is…
• p. 15 …By launching spacecraft on a beam of electromagnetic radiation, researchers will have developed the first new…
• p. 16 …The laser beam's pulse interacts with the mirror, spreading out and focusing into an annular…
• p. 17 …1) power supply; 2) high-power (megawatt-class) laser beam generator/transmitter using novel beam optics…
• p. 20 …is to the right and the laser beam strikes the stretched-out parabolic mirror/propulsion section…
• p. 21 …It requires a beam power of 0.1 to 1 MW per kg of vehicle mass…
• p. 22 …The ground-based megawatt-class laser beam generator is state-of-the-art technology. The cost…
• p. 25 …Figure 8 illustrates the adverse beam propagation geometry associated with ETO laser propulsion by means of…
• p. 26 …Attenuation Effects on Captured Laser Beam Power 261. 0.4 0.J 0.2 0.1…
• p. 27 …Unfortunately the demonstrated laser beam power levels for the attractive 1.62 μm wavelength, which suffered…
• p. 28 …Beam combining of several 1 MW (or higher) FELs can achieve a total combined beam output…
• p. 31 …Appropriate rotation of a high-energy laser beam, emanating from a ground/sea-based laser, guides…
• p. 32 …Appropriate rotation and translation of a high-energy laser beam, emanating from a moving aircraft, guides…
• p. 33 …But multiple target interception within allowable time is limited by relatively long beam- riding time needed…
• p. 37 …In this case, it is envisioned that the high- pulsed power within high-energy laser beams…
• p. 39 …In this case, airborne laser beams at 12 km altitude will not suffer the significant propagation…
• p. 41 …sidelobes, creates multiple beams, and steers the ensemble of the individual beams anywhere on Earth. The…
• p. 42 …Each picosat is gravity- gradient stable, has a dipole array facing Earth, and a broader beam…
• p. 43 …Commands for beam sweep delays are superimposed on the time delays of each nanosat. Each nanosat…
• p. 44 …piezoelectric membrane kept flat by an electron beam in response to an optical figure sensor. MEMS…
• p. 46 …technical issues include large wavelength and atmospheric absorption of the laser beam. • Carbon Monoxide (CO) Laser…
• p. 47 …125 Hz@ 20μs. • Laser power, P = 2.5 MW/beam x 4 beams = 10 MW. • Laser…
• p. 50 …Each power oscillator optics module transmitting a 2.5 MW beam of 10.6 μm wavelength…
• p. 52 …Adding an eight amplifier chain that the system was designed for will increase the beam power…
• p. 53 …However, BSSSL beam power can be scaled up further by improving presently known gain media and…
• p. 54 …scalable to 1 MW beam power within 2 years. Typical solid-state lasers have the following…
• p. 55 …A new technology that enables the scaling-up of BSSSL beam power is a recently developed…
• p. 56 …at the same time increasing the average beam power. Figure 21. Phase Change Materials Allow Storage…
• p. 57 …This exponential growth in beam output power is the result of many factors, including the parallel…
• p. 58 …Microlens -O _ ,:1 Incoherent Beam Combining 'Ind1vidually Incoherent Gaussian Beams i=L Controlled /_/Steering • ... o~bined…
• p. 59 …Neodymium Thulium (Tm 3+), Holmium - Range of beam wavelengths(),) produced: 0.48 μm to 2.9…
• p. 61 …Multlmode Fiber Lasers 50kW Multimode Output beam quality BPP-1 o M"2-33 DC EDE…
• p. 62 …The resulting laser beam photon energy depends on the electron energy, the undulator period, and (weakly…
• p. 63 UNCLASSIFIED/ /F8~ 8FFl&I.«1k WliEii a,.klf electron beam ( \ I,:--- ■■>ti■-- undulator ) resonator mirror 0…
• p. 64 …The superconducting accelerator gives good efficiency and gradient while recirculation of the electron beam recovers beam…
• p. 65 UNCLASSIFIED/ /F&~ 8FFHiil.«1k 1!181! &••kY - K"' 1.5.t • Electron Beam: - Photocathode injector creates…
• p. 66 …HIGH ENERGY LASER BEAM CONTROL ··costs could be reduced to as low as $20 per kg…
• p. 67 …The typical HEL beam control system includes:++ 1) a gimbaled beam director, 2) tracking and pointing…
• p. 68 UNCLASSIFIED//F&II. &FFiii,111!! l!llili &HI!¥ A novel new HEL beam control architecture being…
• p. 69 …HEL Beam Pointer/Tracker (courtesy of the Directed Energy Professional Society). In summary, this new architecture…
• p. 70 …The BILL is a solid-state, kilowatt-class laser that measures atmospheric conditions, allowing the beam…
• p. 71 …All of these HEL beam control innovations can be quickly adapted to laser propulsion applications with…
• p. 72 …The entire Lightcraft launch system is comprised of a ground, sea, or airborne laser beam generator…
• p. 73 …New beam control devices and high-power optical train combinations have a resulting beam line that…
• p. 75 …N. (1983), "Advanced Beamed-Energy and Field Propulsion Concepts," BDM/W-83-225-TR, BDM Corp…
• p. 76 …N. (2001), "World Record Flights of Beam-Riding Rocket Lightcraft: Demonstration of 'Disruptive' Propulsion Technology," AIAA…
• p. 77 …of the 6 th Int'! Symposium on Beamed Energy Propulsion, edited by C. R. Phipps, AIP…