Record 50 GHz Bandwidth 1060 nm Metal-Aperture Coupled-Cavity VCSELs Enabling 240 Gbps PAM4 Modulation

We demonstrate 1060nm single-mode coupled-cavity VCSELs with record 50GHz bandwidth, enabling the highest 128Gbps (NRZ) and 240Gbps (PAM4) modulation with low-power consumption of <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\sim 75 \text{fJ} /$</tex> bit. Furthermore, 230Gbps transmission over 500m standard single-mode fiber is achieved.

Authors

Fumio Koyama (ORCID: https://orcid.org/0000-0001-7422-9391)
Xiaodong Gu
Chang Ge (ORCID: https://orcid.org/0000-0002-4036-5616)
Ahmed M. Hassan (ORCID: https://orcid.org/0009-0002-7989-0466)
Hameeda R. Ibrahim

Institutions

Tokyo Institute of Technology (JP)

Publication Details

Published: 2025-06-29
DOI: https://doi.org/10.23919/oecc/psc62146.2025.11111245
Citations: 3
Primary Topic: Semiconductor Lasers and Optical Devices
Type: article
Field-Weighted Citation Impact: 2.19

Funders

National Institute of Information and Communications Technology

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article

Record 50 GHz Bandwidth 1060 nm Metal-Aperture Coupled-Cavity VCSELs Enabling 240 Gbps PAM4 Modulation

Fumio Koyama, Xiaodong Gu, Chang Ge, Ahmed M. Hassan et al.

Jun 29, 2025

3 citations

Semiconductor Lasers and Optical Devices

2.19

article

Record 50 GHz Bandwidth 1060 nm Metal-Aperture Coupled-Cavity VCSELs Enabling 240 Gbps PAM4 Modulation

Fumio Koyama, Xiaodong Gu, Chang Ge, Ahmed M. Hassan, Hameeda R. Ibrahim

June 29, 2025article en

3 citations

Abstract

We demonstrate 1060nm single-mode coupled-cavity VCSELs with record 50GHz bandwidth, enabling the highest 128Gbps (NRZ) and 240Gbps (PAM4) modulation with low-power consumption of <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\sim 75 \text{fJ} /$</tex> bit. Furthermore, 230Gbps transmission over 500m standard single-mode fiber is achieved.

Tokyo Institute of Technology (JP)

National Institute of Information and Communications Technology

Affordable and clean energy

Openalex Percentile: Top 11%

Semiconductor Lasers and Optical Devices

2.19

DOI Source OpenAlex

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