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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 18, Iss. 1 — Jan. 1, 2001
  • pp: 195–204

Dynamic holography for optical interconnections. I. Noise floor of low-cross-talk holographic switches

Kim L. Tan, William A. Crossland, and Robert J. Mears  »View Author Affiliations


JOSA A, Vol. 18, Issue 1, pp. 195-204 (2001)
http://dx.doi.org/10.1364/JOSAA.18.000195


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Abstract

Reconfigurable optical interconnects constructed by recording dynamic holograms onto spatial light modulators may be crucial elements in all-optical networks. The extremely low cross-talk level of such free-space holographic switches was shown by an analytic approximation and verified experimentally. The fiber-to-fiber switch utilizes the spatial filtering properties of single-mode fibers, and its cross-talk noise is limited to the sidelobe power as a result of diffraction of the clipped Gaussian beam at the hologram aperture edges, provided that all higher orders are avoided. Greater than 45-dB cross-talk isolation has been measured at transverse-axis locations, and locating a fiber port at off-transverse-axis directions promises to double this level if aberrations are negligible.

© 2001 Optical Society of America

OCIS Codes
(050.1220) Diffraction and gratings : Apertures
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(060.2430) Fiber optics and optical communications : Fibers, single-mode
(090.1970) Holography : Diffractive optics
(090.2890) Holography : Holographic optical elements
(200.4650) Optics in computing : Optical interconnects

Citation
Kim L. Tan, William A. Crossland, and Robert J. Mears, "Dynamic holography for optical interconnections. I. Noise floor of low-cross-talk holographic switches," J. Opt. Soc. Am. A 18, 195-204 (2001)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-18-1-195

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