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Proceedings Paper • Open Access

Novel satellite positioning system using acousto-optic deflector
Author(s): Mitsuru Musha; Kei Akami; Aru Suemasa

Paper Abstract

Space gravitational wave detector in Japan named DECIGO is equilateral triangle-shaped laser interferometer with the arm length of 1000 km. For initial alignment and keeping formation of DECIGO, we propose novel satellite positioning system. Our system consists of a single-mode laser, acousto-optic deflectors (AOD) and a frequency counter. The diffraction beam from AOD deflects with the deflection angle which is proportional to the modulation frequency of AOD. The modulation frequency is swept to scan the angle of the deflected beam, and, at the remote end, a photo detector derives its position from the detected modulation frequency of the scanned deflected beam. Compared with the conventional optical method, our system is compact and has no moving elements, and the angle resolution of our system depends on not the optical diffraction limit but the resolution of frequency counting. In the current paper, we present the principle and the preliminary results of our system.

Paper Details

Date Published: 12 July 2019
PDF: 8 pages
Proc. SPIE 11180, International Conference on Space Optics — ICSO 2018, 111804A (12 July 2019); doi: 10.1117/12.2536073
Show Author Affiliations
Mitsuru Musha, The Univ. of Electro-Communications (Japan)
Kei Akami, The Univ. of Electro-Communications (Japan)
Aru Suemasa, The Univ. of Electro-Communications (Japan)


Published in SPIE Proceedings Vol. 11180:
International Conference on Space Optics — ICSO 2018
Zoran Sodnik; Nikos Karafolas; Bruno Cugny, Editor(s)

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