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Applied Optics

Applied Optics


  • Vol. 37, Iss. 27 — Sep. 20, 1998
  • pp: 6355–6361

Fault-tolerant dense multiwavelength add–drop filter with a two-dimensional digital micromirror device

Nabeel A. Riza and Sarun Sumriddetchkajorn  »View Author Affiliations

Applied Optics, Vol. 37, Issue 27, pp. 6355-6361 (1998)

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A two-dimensional digital micromirror device- (DMD-) based add–drop filter is introduced for dense wavelength-division multiplexed applications. Features of the filter include polarization-insensitive operation, low interchannel cross talk parallel processing, and a fault-tolerant design. Experiments include evaluation of a parallel-beam-fed interchannel cross-talk with a 25-beam mask and a three-color (red, green, blue) filter operational test that indicates output-port average switching optical signal-to-noise and multiwavelength cross-talk ratios of 24 dB. The DMD-based average optical loss for the filter is -2.85 dB for visible-light free-space operation, whereas a -8.88-dB optical loss is measured for a fiber-coupled filter operating at 1319 nm.

© 1998 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.4230) Fiber optics and optical communications : Multiplexing
(060.4510) Fiber optics and optical communications : Optical communications

Original Manuscript: December 22, 1997
Revised Manuscript: April 23, 1998
Published: September 20, 1998

Nabeel A. Riza and Sarun Sumriddetchkajorn, "Fault-tolerant dense multiwavelength add–drop filter with a two-dimensional digital micromirror device," Appl. Opt. 37, 6355-6361 (1998)

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