Demonstration of interferometer sensitivity varying as the inverse of the group index

M. S. Shahriar*, G. S. Pati, M. Messal

*Corresponding author for this work

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

Abstract

We have shown experimentally that dispersion due to an intra-cavity electromagnetically induced transparency or gain medium reduces the sensitivity of the cavity resonance frequency to a change in its length by a factor which is inversely proportional to the group index. Since the group index under atomic coherence can be made extremely large, the sensitivity of a long path length optical cavity can be reduced significantly. This can help in constructing highly frequency-stable cavities for various potential applications without taking additional measures for mechanical stability. The results also establish indirectly the opposite effect of increased sensitivity that can be realized for a negative dispersion corresponding to a group index close to a null value. These effects are discussed in the context of potential sensitivity enhancement of a rotation sensor.

Original languageEnglish (US)
Title of host publicationAdvanced Optical and Quantum Memories and Computing IV
DOIs
StatePublished - 2007
EventAdvanced Optical and Quantum Memories and Computing IV - San Jose, CA, United States
Duration: Jan 24 2007Jan 25 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6482
ISSN (Print)0277-786X

Other

OtherAdvanced Optical and Quantum Memories and Computing IV
Country/TerritoryUnited States
CitySan Jose, CA
Period1/24/071/25/07

Keywords

  • Electromagnetically induced transparency
  • Raman gain
  • Slow light

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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