Spatial-phase-code division multiple access system with Fourier holography switch

K. Takasago, M. Takekawa, A. Shirakawa, Fumihiko Kannari

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A relatively simple scheme for the simultaneous routing of many independent signals among a number of transmitters (TXs) and receivers (Rxs) using spatial multiplexing with pseudorandom phase codes is proposed for Fourier holography switching. The system consists of Txs and Rxs sharing a single channel. With the routing information embedded within the decoding mask, the output beam is shifted by 200 μm. The ratio of the peak intensity at the routing plane in the case of unmatched masks to the matched is about 6. As to the pseudorandom phase mask, an M-sequence pattern is displayed on a linear spatial light modulator. Routed independently using a multiplexed hologram, two signals are decoded independently with a high signal-to-noise ratio.

Original languageEnglish
Title of host publicationConference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS
Editors Anon
PublisherIEEE
Pages52-53
Number of pages2
Volume11
Publication statusPublished - 1997
EventProceedings of the 1997 Conference on Lasers and Electro-Optics, CLEO - Baltimore, MD, USA
Duration: 1997 May 181997 May 23

Other

OtherProceedings of the 1997 Conference on Lasers and Electro-Optics, CLEO
CityBaltimore, MD, USA
Period97/5/1897/5/23

Fingerprint

Holography
Code division multiple access
Masks
Switches
Holograms
Multiplexing
Decoding
Transmitters
Signal to noise ratio

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Industrial and Manufacturing Engineering

Cite this

Takasago, K., Takekawa, M., Shirakawa, A., & Kannari, F. (1997). Spatial-phase-code division multiple access system with Fourier holography switch. In Anon (Ed.), Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS (Vol. 11, pp. 52-53). IEEE.

Spatial-phase-code division multiple access system with Fourier holography switch. / Takasago, K.; Takekawa, M.; Shirakawa, A.; Kannari, Fumihiko.

Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS. ed. / Anon. Vol. 11 IEEE, 1997. p. 52-53.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Takasago, K, Takekawa, M, Shirakawa, A & Kannari, F 1997, Spatial-phase-code division multiple access system with Fourier holography switch. in Anon (ed.), Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS. vol. 11, IEEE, pp. 52-53, Proceedings of the 1997 Conference on Lasers and Electro-Optics, CLEO, Baltimore, MD, USA, 97/5/18.
Takasago K, Takekawa M, Shirakawa A, Kannari F. Spatial-phase-code division multiple access system with Fourier holography switch. In Anon, editor, Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS. Vol. 11. IEEE. 1997. p. 52-53
Takasago, K. ; Takekawa, M. ; Shirakawa, A. ; Kannari, Fumihiko. / Spatial-phase-code division multiple access system with Fourier holography switch. Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS. editor / Anon. Vol. 11 IEEE, 1997. pp. 52-53
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