Linear gain anisotropy and mode profile asymmetry in spin-VCSELs: extended spin-flip models

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F22%3A10251662" target="_blank" >RIV/61989100:27360/22:10251662 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27740/22:10251662 RIV/61989100:27640/22:10251662

Výsledek na webu

<a href="https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12205/2636203/Linear-gain-anisotropy-and-mode-profile-asymmetry-in-spin-VCSELs/10.1117/12.2636203.short" target="_blank" >https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12205/2636203/Linear-gain-anisotropy-and-mode-profile-asymmetry-in-spin-VCSELs/10.1117/12.2636203.short</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2636203" target="_blank" >10.1117/12.2636203</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Linear gain anisotropy and mode profile asymmetry in spin-VCSELs: extended spin-flip models

Popis výsledku v původním jazyce

Spin-VCSELs offer particularly rich polarization dynamics due to non-trivial interplay of spin-induced circular gain dichroism with microcavity-related linear anisotropies. One of their promising applications is a data transfer technology in which the information is carried by spin of electrons and photons, surpassing the standard intensity modulation technology in both speed and energy consumption. Over the years, modeling of spin-VCSELs has been basically monopolized by the so-called spin-flip model, which is however constructed assuming degenerate orthogonal modes. Moreover, any amplitude anisotropies are treated in a perturbative way using linear coupling terms. This can be misleading in case of gain anisotropies originating from QW strain or asymmetric light confinement. The situation is even more complicated in highly-birefringent devices such as grating-based spin-VCSELs, where the mode profile asymmetry leads to new coupling mechanisms of optical field components with opposite helicity. The aim of this work is to (i) explore the role of linear gain anisotropy in spin-VCSELs within the extended spin-flip model based on polarization-resolved coupled-mode theory and (ii) to further analyze the consequences of recently predicted coupling mechanisms appearing in highly-birefringent spin-VCSELs.

Název v anglickém jazyce

Linear gain anisotropy and mode profile asymmetry in spin-VCSELs: extended spin-flip models

Popis výsledku anglicky

Spin-VCSELs offer particularly rich polarization dynamics due to non-trivial interplay of spin-induced circular gain dichroism with microcavity-related linear anisotropies. One of their promising applications is a data transfer technology in which the information is carried by spin of electrons and photons, surpassing the standard intensity modulation technology in both speed and energy consumption. Over the years, modeling of spin-VCSELs has been basically monopolized by the so-called spin-flip model, which is however constructed assuming degenerate orthogonal modes. Moreover, any amplitude anisotropies are treated in a perturbative way using linear coupling terms. This can be misleading in case of gain anisotropies originating from QW strain or asymmetric light confinement. The situation is even more complicated in highly-birefringent devices such as grating-based spin-VCSELs, where the mode profile asymmetry leads to new coupling mechanisms of optical field components with opposite helicity. The aim of this work is to (i) explore the role of linear gain anisotropy in spin-VCSELs within the extended spin-flip model based on polarization-resolved coupled-mode theory and (ii) to further analyze the consequences of recently predicted coupling mechanisms appearing in highly-birefringent spin-VCSELs.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10300 - Physical sciences

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of SPIE. Volume 12205

ISBN

978-1-5106-5394-8

ISSN

0277-786X

e-ISSN

1996-756X

Počet stran výsledku

10

Strana od-do

—

Název nakladatele

SPIE

Místo vydání

Bellingham

Místo konání akce

San Diego

Datum konání akce

21. 8. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000886774400009