Polarization dynamics in spin-VCSELs with integrated surface grating for high birefringence splitting

  • Polarization dynamics in spin-polarized vertical-cavity surface-emitting lasers (spin-VCSELs) with high birefringence have recently been demonstrated to offer very high potential for optical data-transmission systems that outperform their counterparts based on conventional direct current modulation by far. For polarization dynamics in spin-VCSELs, the birefringence determines the resonance frequency and thus the modulation bandwidth. In previous work, birefringence was controlled using mechanical strain, which lacks the ability to be integrated in standard VCSEL manufacturing processes. In this work the polarization dynamics of a VCSEL with an integrated birefringence control mechanism is demonstrated based on custom designed integrated surface gratings. It is found that, despite the surface grating which is commonly known to stabilize the polarization, the presented spin-VCSELs are able to generate polarization oscillations with frequencies corresponding to the birefringence induced by the surface grating and show polarization dynamics up to 68 GHz.

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Author:Markus LindemannORCiDGND, Natalie JungGND, Nicolas Manrique-NietoGND, Tobias PuschGND, Rainer MichalzikGND, Nils Christopher GerhardtGND, Martin HofmannGND
Parent Title (English):Electronics letters
Place of publication:Stevenage
Document Type:Article
Date of Publication (online):2024/03/19
Date of first Publication:2023/07/02
Publishing Institution:Ruhr-Universität Bochum, Universitätsbibliothek
Tag:Open Access Fonds
Issue:13, Artikel e12827
First Page:e12827-1
Last Page:e12827-3
Article Processing Charge funded by the Deutsche Forschungsgemeinschaft (DFG) and the Open Access Publication Fund of Ruhr-Universität Bochum.
Institutes/Facilities:Lehrstuhl für Photonik und Terahertztechnologie
Dewey Decimal Classification:Technik, Medizin, angewandte Wissenschaften / Elektrotechnik, Elektronik
open_access (DINI-Set):open_access
faculties:Fakultät für Elektrotechnik und Informationstechnik
Licence (English):License LogoCreative Commons - CC BY 4.0 - Attribution 4.0 International