Circulator-free reflection-type tunable optical dispersion compensator using tandem arrayed-waveguide gratings

Yuichiro Ikuma, Takayuki Mizuno, Hiroshi Takahashi, Hiroyuki Tsuda

Research output: Contribution to journalArticle

3 Citations (Scopus)


A tunable optical dispersion compensator that uses cascaded arrayed-waveguide gratings and an integrated phase shifter is reported. It is a catoptric circuit but does not require a circulator. The dispersion is successfully controlled from +142 to +1148 ps/nm. Error-free transmission is confirmed after dispersion compensation in a transmission experiment using 43 Gbps CSRZ-DQPSK modulation.

Original languageEnglish
Article number5887369
Pages (from-to)2447-2453
Number of pages7
JournalJournal of Lightwave Technology
Issue number16
Publication statusPublished - 2011 Aug 15



  • Gratings
  • Thermooptic effect
  • lenses
  • optical circulators
  • optical fiber dispersion
  • optical waveguides
  • resin

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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