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

Mariusz Drong; Tibor Fördös; Henri Y. Jaffrès; Kamil Postava; Henri-Jean Drouhin

doi:10.1117/12.2636203

3 October 2022 Linear gain anisotropy and mode profile asymmetry in spin-VCSELs: extended spin-flip models

Mariusz Drong, Tibor Fördös, Henri Y. Jaffrès, Kamil Postava, Henri-Jean Drouhin

Proceedings Volume 12205, Spintronics XV; 122050A (2022) https://doi.org/10.1117/12.2636203
Event: SPIE Nanoscience + Engineering, 2022, San Diego, California, United States

Abstract

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.

Conference Presentation

Citation Download Citation

Mariusz Drong, Tibor Fördös, Henri Y. Jaffrès, Kamil Postava, and Henri-Jean Drouhin "Linear gain anisotropy and mode profile asymmetry in spin-VCSELs: extended spin-flip models", Proc. SPIE 12205, Spintronics XV, 122050A (3 October 2022); https://doi.org/10.1117/12.2636203

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available