The estimated cost of the laser array is based on extrapolation from the past two decades, and the prospects of mass production to reduce the associated cost.
Laser amplifier costs declined exponentially between 1990 and 2015, halving approximately every 1.5 years (18 months). If this this trend were to continue, it would bring the construction cost a large beamer orders of magnitude lower within the next decades.
- Benford, G., Benford, J., & Benford, D., “Searching for Cost-Optimized Interstellar Beacons,” Astrobiology, Vol. 10, p. 491 (2010)
- Benford, J., “Starship Sails Propelled by Cost-Optimized Directed Energy,” Journal of the British Interplanetary Society, Vol. 66, p. 85 (2013)
- Benford, J., Benford, G., & Benford, D., “Messaging with Cost-Optimized Interstellar Beacons,” Astrobiology, Vol. 10, p. 475 (2010)
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