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  • Research Article
  • Open Access

Optical Wavelet Signals Processing and Multiplexing

  • 1Email author,
  • 1 and
  • 1
EURASIP Journal on Advances in Signal Processing20052005:742803

  • Received: 31 March 2004
  • Published:


We present compact integrable architectures to perform the discrete wavelet transform (DWT) and the wavelet packet (WP) decomposition of an optical digital signal, and we show that the combined use of planar lightwave circuits (PLC) technology and multiresolution analysis (MRA) can add flexibility to current multiple access optical networks. We furnish the design guidelines to synthesize wavelet filters as two-port lattice-form planar devices, and we give some examples of optical signal denoising and compression/decompression techniques in the wavelet domain. Finally, we present a fully optical wavelet packet division multiplexing (WPDM) scheme where data signals are waveform-coded onto wavelet atom functions for transmission, and numerically evaluate its performances.

Keywords and phrases

  • optical communication system
  • wavelet transforms
  • wavelet packet division multiplexing
  • planar lightwave circuits
  • optical signal processing

Authors’ Affiliations

Department of Applied Electronics, University Rome Tre, Via della Vasca Navale 84, Roma, 00146, Italy


© Cincotti et al. 2005