ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
The far-field pattern of a large-scale amplifier array (LSAA) consisting of a large number (2000) of diode laser amplifiers is numerically simulated, and the power collection efficiencies are determined. Random distributions of phase mismatches, misorientations, and element failures in the LSAA system are considered. Phase mismatches and misorientations of the element amplifiers are found to be the most critical parameters of those affecting the power-collection efficiency. Errors of 0.2λ and 25% for phase and diffraction angle, respectively, cause a 10% reduction in power-collection efficiency. The results are used to evaluate the concept of space-laser power transmission. It was found that an overall transmission efficiency of 80% could be realized with a 5-m-diam. receiver at a distance of 10 000 km when an LSAA transmitter 6 m in diam. is aimed with state-of-the-art pointing accuracy.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.347301
