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Applied Optics

Applied Optics


  • Vol. 39, Iss. 5 — Feb. 10, 2000
  • pp: 690–697

Broadband parallel-fiber optical link for short-distance interconnection with multimode fibers

Ulrich W. Krackhardt, Róbert Klug, and Karl-Heinz Brenner  »View Author Affiliations

Applied Optics, Vol. 39, Issue 5, pp. 690-697 (2000)

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In a multimode step-index fiber the propagation angle of a beam is conserved over short distances even if the fiber is bent slightly. This behavior can be exploited for a multiplexed signal transmission by the assignment of different channels to different propagation angles [angle-division multiplexing (ADM)]. Thus parallel transmission can be achieved. Because each channel occupies only a subrange of the fiber’s numerical aperture, modal dispersion is reduced compared with single-channel transmission through the same fiber. The transmission properties of an ADM-based transmission line are analyzed for short propagation distances. Passive all-optical setups for multiplexing and demultiplexing operations are proposed. Cross-talk measurements are shown for a transmission with a length of 8 m and 13 multiplexed channels.

© 2000 Optical Society of America

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(060.4510) Fiber optics and optical communications : Optical communications
(130.1750) Integrated optics : Components

Original Manuscript: May 11, 1999
Revised Manuscript: August 1, 1999
Published: February 10, 2000

Ulrich W. Krackhardt, Róbert Klug, and Karl-Heinz Brenner, "Broadband parallel-fiber optical link for short-distance interconnection with multimode fibers," Appl. Opt. 39, 690-697 (2000)

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