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Applied Optics

Applied Optics


  • Vol. 32, Iss. 23 — Aug. 10, 1993
  • pp: 4415–4422

Wavelength demultiplexer in multimode fiber that uses optimized holographic optical elements

Yukihiro Ishii and Toshihiro Kubota  »View Author Affiliations

Applied Optics, Vol. 32, Issue 23, pp. 4415-4422 (1993)

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A single-transmission holographic optical element capable of broadband five-channel demultiplexing in multimode fiber is described. A holographic optical element demultiplexer combines a hologram on dichromated gelatin with a computer-generated hologram. A design of the demultiplexer with a nonspherical wave front based on ray tracing and the optimization technique perfectly permits five cross-talk isolations by reducing the aberrations of multiple focused spots caused by a recording-readout wavelength shift. Such a system has a channel separation of 300 μm (20 nm in wavelength difference) between adjacent fibers in an operating laser diode wavelength region of 0.8–0.88 μm. Experiments demonstrating the feasibility of this demultiplexer with a 780-nm laser diode source are presented.

© 1993 Optical Society of America

Original Manuscript: August 17, 1992
Published: August 10, 1993

Yukihiro Ishii and Toshihiro Kubota, "Wavelength demultiplexer in multimode fiber that uses optimized holographic optical elements," Appl. Opt. 32, 4415-4422 (1993)

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