Distortion free pulse delay system using a pair of tunable white light cavities

H. N. Yum, M. E. Kim, Y. J. Jang, M. S. Shahriar

Research output: Contribution to journalArticlepeer-review

26 Scopus citations


Recently, a tunable bandwidth white light cavity (WLC) was demonstrated by using an anomalously dispersive intra-cavity medium to adjust a cavity linewidth without reducing the cavity buildup factor [G.S. Pati et al., Phys. Rev. Lett. 99, 133601 (2007)]. In this paper, we show theoretically how such a WLC can be used to realize a distortion-free delay system for a data pulse. The system consists of two WLCs placed in series. Once the pulse has passed through them, the fast-light media in both WLCs are deactivated, so that each of these now acts as a very high reflectivity mirror. The data pulse bounces around between these mirrors, undergoing negligible attenuation per pass. The trapped pulse can be released by activating the fast-light medium in either WLC. Numerical simulations show that such a system can far exceed the delay-bandwidth constraint encountered in a typical data buffer employing slow light. We also show that the pulse remains virtually undistorted during the process.

Original languageEnglish (US)
Pages (from-to)6705-6713
Number of pages9
JournalOptics Express
Issue number7
StatePublished - Mar 28 2011

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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