MEMS-Based Channelized Dispersion Compensator With Flat Passbands

David T. Neilson*, Roland Ryf, Flavio Pardo, Vladimir A. Aksyuk, Maria Elina Simon, Daniel O. Lopez, Dan M. Marom, S. Chandrasekhar

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

51 Scopus citations


This paper describes a continuously variable and independently addressable channelized dispersion compensator. The optical system is a free-space grating-based system used in a four-pass configuration to ensure flat passbands. The variable dispersion is produced by an array of thermally adaptable curvature micromechanical mirrors. A per-channel variable dispersion greater than +/-400 ps/nm has been demonstrated, with 58 GHz +/-0.4 dB flat passband on 85 GHz spacing. The group delay ripple is less than 7 ps and the penalty with 40 Gb/s CSRZ is 0.7 dB.

Original languageAmerican English
Pages (from-to)101-105
Number of pages5
JournalJournal of Lightwave Technology
Issue number1
StatePublished - Jan 2004
Externally publishedYes


  • Dispersion compensator
  • Microelectromechanical systems (MEMS)


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