A new laser beam pointing method using laser arrays

P. M. Goorjian

doi:10.1117/12.2506303

4 March 2019 A new laser beam pointing method using laser arrays

P. M. Goorjian

Proceedings Volume 10910, Free-Space Laser Communications XXXI; 109101F (2019) https://doi.org/10.1117/12.2506303
Event: SPIE LASE, 2019, San Francisco, California, United States

Abstract

A new method is described for optical data transmissions from satellites using laser arrays for laser beam pointing. It combines a lens system and a vertical-cavity surface-emitting laser (VCSEL)/Photodetector Array, both mature technologies, in a novel way. This system is applied to satellites in low-Earth orbit, (LEO). It can replace current architectures which use dynamical systems, (i.e., moving parts) to point the laser, and which may use vibration isolation platforms. Results of computer simulations show diffraction limited beam propagation. Possible additional applications are to planetary distances (deep space optical communications, (DSOC)), to optical multiple access, (OMA), to communication between a constellation of close satellites, and to satellites that use modulating retro-reflectors.

Citation Download Citation

P. M. Goorjian "A new laser beam pointing method using laser arrays ", Proc. SPIE 10910, Free-Space Laser Communications XXXI, 109101F (4 March 2019); https://doi.org/10.1117/12.2506303

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