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Proceedings Paper

Orbital angular momentum (OAM) multiplexing in free-space optical data transfer
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Paper Abstract

In the optical wireless communication systems proposed by Gibson, et al, the information is encoded as states of orbital angular momentum (OAM) of light and the transmitter unit can produce laser beam with single OAM-state in a time-slot. Recently we have proved that it is possible to generate multiple OAM-states simultaneously by single spatial light modulator. This method is adopted in our free-space optical wireless communication system and these OAM-states can be detected in the receiving unit by a computer-generated hologram. Hence, the transmission capacity is enhanced significantly without increasing the complexity of system.

Paper Details

Date Published: 1 September 2006
PDF: 5 pages
Proc. SPIE 6304, Free-Space Laser Communications VI, 630411 (1 September 2006); doi: 10.1117/12.679795
Show Author Affiliations
Jiao Lin, Nanyang Technological Univ. (Singapore)
Xiao-Cong Yuan, Nanyang Technological Univ. (Singapore)
Shaohua Tao, Nanyang Technological Univ. (Singapore)

Published in SPIE Proceedings Vol. 6304:
Free-Space Laser Communications VI
Arun K. Majumdar; Christopher C. Davis, Editor(s)

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