Direct measurement of the group index of photonic crystal waveguides via Fourier transform spectral interferometry

Alvaro Gomez-Iglesias, David O'Brien, Liam O'Faolain, Alan Miller, Thomas F. Krauss

Research output: Contribution to journalArticle

Abstract

The authors report a direct, single-shot measurement of the group index profile of photonic crystal waveguides, combining spectral interferometry with Fourier transform analysis. This technique's versatility allows them to resolve subtle changes in dispersion and to quantify the "slow light" effect at the photonic crystal waveguide mode cutoff. For a waveguide 99 mu m long, they measure a group index up to 85, whereas for lengths of 397 and 695 mu m, they measure maximum values of 30 and 25, respectively. These results show the relationship between transmission characteristics and the maximum group delay observed in photonic crystals. (c) 2007 American Institute of Physics.

Original languageEnglish
Article number261107
Pages (from-to)-
Number of pages3
JournalApplied Physics Letters
Volume90
Issue number26
DOIs
Publication statusPublished - 25 Jun 2007

Keywords

  • SLOW LIGHT

Cite this

Gomez-Iglesias, Alvaro ; O'Brien, David ; O'Faolain, Liam ; Miller, Alan ; Krauss, Thomas F. / Direct measurement of the group index of photonic crystal waveguides via Fourier transform spectral interferometry. In: Applied Physics Letters. 2007 ; Vol. 90, No. 26. pp. -.
@article{6fac7124c8f14da490c1b3af0cfd20e1,
title = "Direct measurement of the group index of photonic crystal waveguides via Fourier transform spectral interferometry",
abstract = "The authors report a direct, single-shot measurement of the group index profile of photonic crystal waveguides, combining spectral interferometry with Fourier transform analysis. This technique's versatility allows them to resolve subtle changes in dispersion and to quantify the {"}slow light{"} effect at the photonic crystal waveguide mode cutoff. For a waveguide 99 mu m long, they measure a group index up to 85, whereas for lengths of 397 and 695 mu m, they measure maximum values of 30 and 25, respectively. These results show the relationship between transmission characteristics and the maximum group delay observed in photonic crystals. (c) 2007 American Institute of Physics.",
keywords = "SLOW LIGHT",
author = "Alvaro Gomez-Iglesias and David O'Brien and Liam O'Faolain and Alan Miller and Krauss, {Thomas F.}",
year = "2007",
month = "6",
day = "25",
doi = "10.1063/1.2752761",
language = "English",
volume = "90",
pages = "--",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Publising LLC",
number = "26",

}

Direct measurement of the group index of photonic crystal waveguides via Fourier transform spectral interferometry. / Gomez-Iglesias, Alvaro; O'Brien, David; O'Faolain, Liam; Miller, Alan; Krauss, Thomas F.

In: Applied Physics Letters, Vol. 90, No. 26, 261107, 25.06.2007, p. -.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Direct measurement of the group index of photonic crystal waveguides via Fourier transform spectral interferometry

AU - Gomez-Iglesias, Alvaro

AU - O'Brien, David

AU - O'Faolain, Liam

AU - Miller, Alan

AU - Krauss, Thomas F.

PY - 2007/6/25

Y1 - 2007/6/25

N2 - The authors report a direct, single-shot measurement of the group index profile of photonic crystal waveguides, combining spectral interferometry with Fourier transform analysis. This technique's versatility allows them to resolve subtle changes in dispersion and to quantify the "slow light" effect at the photonic crystal waveguide mode cutoff. For a waveguide 99 mu m long, they measure a group index up to 85, whereas for lengths of 397 and 695 mu m, they measure maximum values of 30 and 25, respectively. These results show the relationship between transmission characteristics and the maximum group delay observed in photonic crystals. (c) 2007 American Institute of Physics.

AB - The authors report a direct, single-shot measurement of the group index profile of photonic crystal waveguides, combining spectral interferometry with Fourier transform analysis. This technique's versatility allows them to resolve subtle changes in dispersion and to quantify the "slow light" effect at the photonic crystal waveguide mode cutoff. For a waveguide 99 mu m long, they measure a group index up to 85, whereas for lengths of 397 and 695 mu m, they measure maximum values of 30 and 25, respectively. These results show the relationship between transmission characteristics and the maximum group delay observed in photonic crystals. (c) 2007 American Institute of Physics.

KW - SLOW LIGHT

U2 - 10.1063/1.2752761

DO - 10.1063/1.2752761

M3 - Article

VL - 90

SP - -

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 26

M1 - 261107

ER -