Impact of slow-light enhancement on optical propagation in active semiconductor photonic crystal waveguides

Research output: Contribution to journalJournal article – Annual report year: 2015Researchpeer-review

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Impact of slow-light enhancement on optical propagation in active semiconductor photonic crystal waveguides. / Chen, Yaohui; de Lasson, Jakob Rosenkrantz; Gregersen, Niels; Mørk, Jesper.

In: Physical Review A, Vol. 92, 053839, 2015, p. 8.

Research output: Contribution to journalJournal article – Annual report year: 2015Researchpeer-review

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@article{273b14cc6bb1437c924974d6a3a3a5a7,
title = "Impact of slow-light enhancement on optical propagation in active semiconductor photonic crystal waveguides",
abstract = "We derive and validate a set of coupled Bloch wave equations for analyzing the reflection and transmission properties of active semiconductor photonic crystal waveguides. In such devices, slow-light propagation can be used to enhance the material gain per unit length, enabling, for example, the realization of short optical amplifiers compatible with photonic integration. The coupled wave analysis is compared to numerical approaches based on the Fourier modal method and a frequency domain finite element technique. The presence of material gain leads to the build-up of a backscattered field, which is interpreted as distributed feedback effects or reflection at passive-active interfaces, depending on the approach taken. For very large material gain values, the band structure of the waveguide is perturbed, and deviations from the simple coupled Bloch wave model are found.",
author = "Yaohui Chen and {de Lasson}, {Jakob Rosenkrantz} and Niels Gregersen and Jesper M{\o}rk",
year = "2015",
doi = "10.1103/PhysRevA.92.053839",
language = "English",
volume = "92",
pages = "8",
journal = "Physical Review A (Atomic, Molecular and Optical Physics)",
issn = "2469-9926",
publisher = "American Physical Society",

}

RIS

TY - JOUR

T1 - Impact of slow-light enhancement on optical propagation in active semiconductor photonic crystal waveguides

AU - Chen, Yaohui

AU - de Lasson, Jakob Rosenkrantz

AU - Gregersen, Niels

AU - Mørk, Jesper

PY - 2015

Y1 - 2015

N2 - We derive and validate a set of coupled Bloch wave equations for analyzing the reflection and transmission properties of active semiconductor photonic crystal waveguides. In such devices, slow-light propagation can be used to enhance the material gain per unit length, enabling, for example, the realization of short optical amplifiers compatible with photonic integration. The coupled wave analysis is compared to numerical approaches based on the Fourier modal method and a frequency domain finite element technique. The presence of material gain leads to the build-up of a backscattered field, which is interpreted as distributed feedback effects or reflection at passive-active interfaces, depending on the approach taken. For very large material gain values, the band structure of the waveguide is perturbed, and deviations from the simple coupled Bloch wave model are found.

AB - We derive and validate a set of coupled Bloch wave equations for analyzing the reflection and transmission properties of active semiconductor photonic crystal waveguides. In such devices, slow-light propagation can be used to enhance the material gain per unit length, enabling, for example, the realization of short optical amplifiers compatible with photonic integration. The coupled wave analysis is compared to numerical approaches based on the Fourier modal method and a frequency domain finite element technique. The presence of material gain leads to the build-up of a backscattered field, which is interpreted as distributed feedback effects or reflection at passive-active interfaces, depending on the approach taken. For very large material gain values, the band structure of the waveguide is perturbed, and deviations from the simple coupled Bloch wave model are found.

U2 - 10.1103/PhysRevA.92.053839

DO - 10.1103/PhysRevA.92.053839

M3 - Journal article

VL - 92

SP - 8

JO - Physical Review A (Atomic, Molecular and Optical Physics)

JF - Physical Review A (Atomic, Molecular and Optical Physics)

SN - 2469-9926

M1 - 053839

ER -