Observation of pulse compression in photonic crystal coupled cavity waveguides

T. J. Karle, Y. J. Chai, C. N. Morgan, I. H. White, T. F. Krauss

Research output: Contribution to journalArticle

73 Citations (Scopus)

Abstract

We demonstrate the compression of picosecond pulses using the large group velocity dispersion available from planar photonic crystal (PhC) coupled cavity waveguides (CCWs). A maximum pulsewidth reduction of 40%, from 1.91 to 1.17 ps, is achieved, in transmission through an 8-μm-long planar PhC waveguide; The equivalent dispersion value is >106 times larger than that available from standard single-mode fiber, at the pulse center wavelength of 1536 nm. The device performance is analyzed with the aid of both two-dimensional (2-D) eigenmode expansion and 2-D finite-difference time-domain (FDTD) models. The models included the material dispersion of the GaAs/AlGaAs heterostructure, into which the PhCs are etched, and show remarkable agreement with experiment.

Original languageEnglish
Pages (from-to)514-519
Number of pages6
JournalJournal of Lightwave Technology
Volume22
Issue number2
DOIs
Publication statusPublished - 1 Feb 2004

Keywords

  • Band-gap structures
  • Fabrication
  • Optical planar waveguides
  • Optical pulse compression

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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