Modelling of Chirped Pulse Propagation Through a Mini-Stop Band in a 2D Photonic Crystal Waveguide

T.  Cao; Martin J.  Cryan; Pavel S.  Ivanov; Daniel Ho; Bob  Ren; Ian James  Craddock; Judy M.  Rorison; Chris J.  Railton

doi:10.1364/JOSAB.24.001575

Modelling of Chirped Pulse Propagation Through a Mini-Stop Band in a 2D Photonic Crystal Waveguide

T. Cao, Martin J. Cryan, Pavel S. Ivanov, Daniel Ho, Bob Ren, Ian James Craddock, Judy M. Rorison, Chris J. Railton

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

The finite-difference time-domain (FDTD) and frequency-domain finite-element (FE) methods are used to study chirped pulse propagation in 2D photonic crystal (PhC) waveguides. Chirped pulse FDTD has been implemented, which allows the study of pulse propagation in a direct way. The carrier wavelength of the pulse is swept across the bandwidth of a mini-stop-band (MSB) feature, and pulse compression behavior is observed. Both round-hole and square-hole PhC waveguides are studied, with the latter giving increased pulse compression. A group-delay analysis is then used to understand the compression behavior, and this shows how the fast-light regime that occurs within the MSB plays an important role in the observed pulse compression.

Original language	English
Pages (from-to)	1575-1583
Number of pages	9
Journal	Journal of the Optical Society of America B: Optical Physics (JOSA B)
Volume	24
Issue number	7
Early online date	15 Jun 2007
DOIs	https://doi.org/10.1364/JOSAB.24.001575
Publication status	Published - 1 Jul 2007
Externally published	Yes

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title = "Modelling of Chirped Pulse Propagation Through a Mini-Stop Band in a 2D Photonic Crystal Waveguide",

abstract = "The finite-difference time-domain (FDTD) and frequency-domain finite-element (FE) methods are used to study chirped pulse propagation in 2D photonic crystal (PhC) waveguides. Chirped pulse FDTD has been implemented, which allows the study of pulse propagation in a direct way. The carrier wavelength of the pulse is swept across the bandwidth of a mini-stop-band (MSB) feature, and pulse compression behavior is observed. Both round-hole and square-hole PhC waveguides are studied, with the latter giving increased pulse compression. A group-delay analysis is then used to understand the compression behavior, and this shows how the fast-light regime that occurs within the MSB plays an important role in the observed pulse compression.",

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T1 - Modelling of Chirped Pulse Propagation Through a Mini-Stop Band in a 2D Photonic Crystal Waveguide

AU - Cao, T.

AU - Cryan, Martin J.

AU - Ivanov, Pavel S.

AU - Ho, Daniel

AU - Ren, Bob

AU - Craddock, Ian James

AU - Rorison, Judy M.

AU - Railton, Chris J.

PY - 2007/7/1

Y1 - 2007/7/1

N2 - The finite-difference time-domain (FDTD) and frequency-domain finite-element (FE) methods are used to study chirped pulse propagation in 2D photonic crystal (PhC) waveguides. Chirped pulse FDTD has been implemented, which allows the study of pulse propagation in a direct way. The carrier wavelength of the pulse is swept across the bandwidth of a mini-stop-band (MSB) feature, and pulse compression behavior is observed. Both round-hole and square-hole PhC waveguides are studied, with the latter giving increased pulse compression. A group-delay analysis is then used to understand the compression behavior, and this shows how the fast-light regime that occurs within the MSB plays an important role in the observed pulse compression.

AB - The finite-difference time-domain (FDTD) and frequency-domain finite-element (FE) methods are used to study chirped pulse propagation in 2D photonic crystal (PhC) waveguides. Chirped pulse FDTD has been implemented, which allows the study of pulse propagation in a direct way. The carrier wavelength of the pulse is swept across the bandwidth of a mini-stop-band (MSB) feature, and pulse compression behavior is observed. Both round-hole and square-hole PhC waveguides are studied, with the latter giving increased pulse compression. A group-delay analysis is then used to understand the compression behavior, and this shows how the fast-light regime that occurs within the MSB plays an important role in the observed pulse compression.

U2 - 10.1364/JOSAB.24.001575

DO - 10.1364/JOSAB.24.001575

M3 - Article

SN - 0740-3224

VL - 24

SP - 1575

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JO - Journal of the Optical Society of America B: Optical Physics (JOSA B)

JF - Journal of the Optical Society of America B: Optical Physics (JOSA B)

IS - 7

ER -

Modelling of Chirped Pulse Propagation Through a Mini-Stop Band in a 2D Photonic Crystal Waveguide

Abstract

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