Fundamental Limitations to Gain Enhancement in Periodic Media and Waveguides

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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@article{5244589c33524fc8aee072a20f168f47,
title = "Fundamental Limitations to Gain Enhancement in Periodic Media and Waveguides",
publisher = "American Physical Society",
author = "Jure Grgic and Ott, {Johan Raunkjær} and Fengwen Wang and Ole Sigmund and Antti-Pekka Jauho and Jesper Mørk and Mortensen, {N. Asger}",
note = "Copyright (2012) American Physical Society.",
year = "2012",
doi = "10.1103/PhysRevLett.108.183903",
volume = "108",
number = "18",
pages = "183903",
journal = "Physical Review Letters",
issn = "0031-9007",

}

RIS

TY - JOUR

T1 - Fundamental Limitations to Gain Enhancement in Periodic Media and Waveguides

A1 - Grgic,Jure

A1 - Ott,Johan Raunkjær

A1 - Wang,Fengwen

A1 - Sigmund,Ole

A1 - Jauho,Antti-Pekka

A1 - Mørk,Jesper

A1 - Mortensen,N. Asger

AU - Grgic,Jure

AU - Ott,Johan Raunkjær

AU - Wang,Fengwen

AU - Sigmund,Ole

AU - Jauho,Antti-Pekka

AU - Mørk,Jesper

AU - Mortensen,N. Asger

PB - American Physical Society

PY - 2012

Y1 - 2012

N2 - A common strategy to compensate for losses in optical nanostructures is to add gain material in the system. By exploiting slow-light effects it is expected that the gain may be enhanced beyond its bulk value. Here we show that this route cannot be followed uncritically: inclusion of gain inevitably modifies the underlying dispersion law, and thereby may degrade the slow-light properties underlying the device operation and the anticipated gain enhancement itself. This degradation is generic; we demonstrate it for three different systems of current interest (coupled-resonator optical waveguides, Bragg stacks, and photonic crystal waveguides). Nevertheless, a small amount of added gain may be beneficial.

AB - A common strategy to compensate for losses in optical nanostructures is to add gain material in the system. By exploiting slow-light effects it is expected that the gain may be enhanced beyond its bulk value. Here we show that this route cannot be followed uncritically: inclusion of gain inevitably modifies the underlying dispersion law, and thereby may degrade the slow-light properties underlying the device operation and the anticipated gain enhancement itself. This degradation is generic; we demonstrate it for three different systems of current interest (coupled-resonator optical waveguides, Bragg stacks, and photonic crystal waveguides). Nevertheless, a small amount of added gain may be beneficial.

U2 - 10.1103/PhysRevLett.108.183903

DO - 10.1103/PhysRevLett.108.183903

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 18

VL - 108

SP - 183903

ER -