Visualization of pulse propagation through an anomalously dispersive intracavity medium

Honam Yum*, Youngjoon Jang, Selim M. Shahriar

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution


It is well-known that a transfer function method is useful to predict the profile of a pulse after it propagates through an intracavity fast-light medium. However, by using this technique, a behavior of the pulse inside the medium cannot be determined. In this paper, we describe a new theoretical approach to deal with this constraint. In the new method, we find an analytical solution for a monochromatic field of infinite spatial and temporal extents, and add the waves with the weighted amplitude and with the tailored phase to embody a Gaussian input pulse moving toward the cavity. At different time frames, the sum of these waves produces a spatial profile of the pulse before, inside and after the cavity. In particular, the pulse profile can be visualized during a superluminal propagation through the intracavity fast-light medium with zero group index. This model allows us to understand the physical process behind the superluminal propagation through a white light cavity, which is significant to realize a high bandwidth data buffer system overcoming conventional delay bandwidth product(DBP) problem.

Original languageEnglish (US)
Title of host publicationAdvances in Slow and Fast Light IV
StatePublished - 2011
EventAdvances in Slow and Fast Light IV - San Francisco, CA, United States
Duration: Jan 23 2011Jan 25 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherAdvances in Slow and Fast Light IV
Country/TerritoryUnited States
CitySan Francisco, CA


  • Data Buffer
  • Ring Intracavity fast-light
  • White light cavity

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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