Mode conversion of ultrafast pulses by grating structures in layered dielectric waveguides

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Various grating configurations are introduced to develop structures for the mode conversion of an ultrafast, ultrawide-bandwidth optical pulse propagating in a layered dielectric waveguide. Introducing a new technique for efficient, real-time mode extraction, we examine these schemes with a full-wave, vector, finite difference time domain (FDTD) Maxwell equation simulator. The resulting FDTD simulator is very flexible and accurate; it is capable of modeling the interaction of few- or many-cycle optical pulsed modes with finite, aperiodic gratings with complex material configurations. The grating structure can be tailored to the pulsed optical modes of interest with this FDTD simulator. It is used to design a composite mode-conversion grating structure that realizes a 29.45% increase in the converted mode energy for an ultrafast six-cycle optical pulse over that achieved with standard uniform grating convertors.

Original languageEnglish (US)
Pages (from-to)1966-1973
Number of pages8
JournalJournal of Lightwave Technology
Volume15
Issue number10
DOIs
StatePublished - Oct 1997
Externally publishedYes

Fingerprint

Dielectric waveguides
dielectric waveguides
Simulators
gratings
Laser modes
Laser pulses
pulses
simulators
Maxwell equations
Bandwidth
cycles
Composite materials
configurations
Maxwell equation
bandwidth
composite materials

Keywords

  • Dielectric waveguides
  • FDTD
  • Mode conversion
  • Mode extraction
  • Numerical modeling
  • Ultrafast optical pulses

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics

Cite this

Mode conversion of ultrafast pulses by grating structures in layered dielectric waveguides. / Liang, Tao; Ziolkowski, Richard W.

In: Journal of Lightwave Technology, Vol. 15, No. 10, 10.1997, p. 1966-1973.

Research output: Contribution to journalArticle

@article{5d0c4cb33fbe4794a987100a4fafc3a2,
title = "Mode conversion of ultrafast pulses by grating structures in layered dielectric waveguides",
abstract = "Various grating configurations are introduced to develop structures for the mode conversion of an ultrafast, ultrawide-bandwidth optical pulse propagating in a layered dielectric waveguide. Introducing a new technique for efficient, real-time mode extraction, we examine these schemes with a full-wave, vector, finite difference time domain (FDTD) Maxwell equation simulator. The resulting FDTD simulator is very flexible and accurate; it is capable of modeling the interaction of few- or many-cycle optical pulsed modes with finite, aperiodic gratings with complex material configurations. The grating structure can be tailored to the pulsed optical modes of interest with this FDTD simulator. It is used to design a composite mode-conversion grating structure that realizes a 29.45{\%} increase in the converted mode energy for an ultrafast six-cycle optical pulse over that achieved with standard uniform grating convertors.",
keywords = "Dielectric waveguides, FDTD, Mode conversion, Mode extraction, Numerical modeling, Ultrafast optical pulses",
author = "Tao Liang and Ziolkowski, {Richard W}",
year = "1997",
month = "10",
doi = "10.1109/50.633602",
language = "English (US)",
volume = "15",
pages = "1966--1973",
journal = "Journal of Lightwave Technology",
issn = "0733-8724",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "10",

}

TY - JOUR

T1 - Mode conversion of ultrafast pulses by grating structures in layered dielectric waveguides

AU - Liang, Tao

AU - Ziolkowski, Richard W

PY - 1997/10

Y1 - 1997/10

N2 - Various grating configurations are introduced to develop structures for the mode conversion of an ultrafast, ultrawide-bandwidth optical pulse propagating in a layered dielectric waveguide. Introducing a new technique for efficient, real-time mode extraction, we examine these schemes with a full-wave, vector, finite difference time domain (FDTD) Maxwell equation simulator. The resulting FDTD simulator is very flexible and accurate; it is capable of modeling the interaction of few- or many-cycle optical pulsed modes with finite, aperiodic gratings with complex material configurations. The grating structure can be tailored to the pulsed optical modes of interest with this FDTD simulator. It is used to design a composite mode-conversion grating structure that realizes a 29.45% increase in the converted mode energy for an ultrafast six-cycle optical pulse over that achieved with standard uniform grating convertors.

AB - Various grating configurations are introduced to develop structures for the mode conversion of an ultrafast, ultrawide-bandwidth optical pulse propagating in a layered dielectric waveguide. Introducing a new technique for efficient, real-time mode extraction, we examine these schemes with a full-wave, vector, finite difference time domain (FDTD) Maxwell equation simulator. The resulting FDTD simulator is very flexible and accurate; it is capable of modeling the interaction of few- or many-cycle optical pulsed modes with finite, aperiodic gratings with complex material configurations. The grating structure can be tailored to the pulsed optical modes of interest with this FDTD simulator. It is used to design a composite mode-conversion grating structure that realizes a 29.45% increase in the converted mode energy for an ultrafast six-cycle optical pulse over that achieved with standard uniform grating convertors.

KW - Dielectric waveguides

KW - FDTD

KW - Mode conversion

KW - Mode extraction

KW - Numerical modeling

KW - Ultrafast optical pulses

UR - http://www.scopus.com/inward/record.url?scp=0031257191&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031257191&partnerID=8YFLogxK

U2 - 10.1109/50.633602

DO - 10.1109/50.633602

M3 - Article

VL - 15

SP - 1966

EP - 1973

JO - Journal of Lightwave Technology

JF - Journal of Lightwave Technology

SN - 0733-8724

IS - 10

ER -