Design of a tunable time-delay element using multiple gain lines for increased fractional delay with high data fidelity.


Journal Article

A slow-light medium based on multiple, closely spaced gain lines is studied. The spacings and relative strengths of the gain lines are optimized by using the criteria of gain penalty and eye-opening penalty to maximize the fractional delay defined in terms of the best decision time for random pulse trains. Both numerical calculations and experiments show that an optimal design of a triple-gain-line medium can achieve a maximal fractional delay about twice that which can be obtained with a single-gain-line medium, at three times higher modulation bandwidth, while high data fidelity is still maintained.

Full Text

Cited Authors

  • Shi, Z; Pant, R; Zhu, Z; Stenner, MD; Neifeld, MA; Gauthier, DJ; Boyd, RW

Published Date

  • July 2007

Published In

Volume / Issue

  • 32 / 14

Start / End Page

  • 1986 - 1988

PubMed ID

  • 17632618

Pubmed Central ID

  • 17632618

Electronic International Standard Serial Number (EISSN)

  • 1539-4794

International Standard Serial Number (ISSN)

  • 0146-9592

Digital Object Identifier (DOI)

  • 10.1364/ol.32.001986


  • eng