Safi, Hossein; Babadi, Sina; Osahon, Isaac N. O.; Sparks, Adrian; Kostakis, Ioannis; Powell, Denise; Meredith, Wyn; Missous, Mohamed; Missous, Medi; Tavakkolnia, Iman; Haas, Harald
Chip-scale beam-shaped optical wireless system for high-speed and energy-efficient connectivity Journal Article
In: Advanced Photonics Nexus, vol. 5, no. 02, 2026, ISSN: 2791-1519.
Links | BibTeX | Tags: LRDC, optical wireless communication (OWC), orthogonal frequency-division multiplexing, Photonics, vertical-cavity surface-emitting lasers
@article{safi_chip-scale_2026,
title = {Chip-scale beam-shaped optical wireless system for high-speed and energy-efficient connectivity},
author = {Hossein Safi and Sina Babadi and Isaac N. O. Osahon and Adrian Sparks and Ioannis Kostakis and Denise Powell and Wyn Meredith and Mohamed Missous and Medi Missous and Iman Tavakkolnia and Harald Haas},
url = {https://www.spiedigitallibrary.org/journals/advanced-photonics-nexus/volume-5/issue-02/026018/Chip-scale-beam-shaped-optical-wireless-system-for-high-speed/10.1117/1.APN.5.2.026018.full},
doi = {10.1117/1.APN.5.2.026018},
issn = {2791-1519},
year = {2026},
date = {2026-03-01},
urldate = {2026-03-18},
journal = {Advanced Photonics Nexus},
volume = {5},
number = {02},
keywords = {LRDC, optical wireless communication (OWC), orthogonal frequency-division multiplexing, Photonics, vertical-cavity surface-emitting lasers},
pubstate = {published},
tppubtype = {article}
}
Osahon, Isaac N. O.; Rajbhandari, Sujan; Kostakis, Ioannis; Ihsan, Asim; Powell, Denise; Meredith, Wyn; Missous, Mohamed; Haas, Harald; Tang, Jianming
Experimental demonstration of 38 Gbps over 2.5 m OWC systems with eye-safe 850 nm SM-VCSELs Journal Article
In: IEEE Photonics Technology Letters, vol. 36, no. 3, pp. 139–142, 2024, ISSN: 1041-1135.
Abstract | Links | BibTeX | Tags: discrete multi-tone (DMT), eye safety, optical wireless communication (OWC), singlemode vertical cavity surface emitting laser (SM-VCSEL)
@article{osahon_experimental_2024,
title = {Experimental demonstration of 38 Gbps over 2.5 m OWC systems with eye-safe 850 nm SM-VCSELs},
author = {Isaac N. O. Osahon and Sujan Rajbhandari and Ioannis Kostakis and Asim Ihsan and Denise Powell and Wyn Meredith and Mohamed Missous and Harald Haas and Jianming Tang},
doi = {10.1109/LPT.2023.3337943},
issn = {1041-1135},
year = {2024},
date = {2024-02-01},
journal = {IEEE Photonics Technology Letters},
volume = {36},
number = {3},
pages = {139–142},
abstract = {With a directly modulated 850 nm single-mode vertical cavity surface emitting laser (SM-VCSEL), we experimentally achieve a gross data rate of ∼38 Gbps over a 2.5 m optical wireless communication (OWC) link at the 7% Reed-Solomon forward error correction (RS-FEC) limit. The OWC link is demonstrated using an eye-safe transmitted optical power of -1.47 dBm and discrete multi-tone (DMT) modulation with adaptive bit-and-power loading. The SM-VCSEL has a relative intensity noise (RIN) of ∼-137 dB/Hz, which is lower than that of a typical commercial 850 nm multimode VCSEL (∼-129 dB/Hz). Therefore, under almost identical OWC link operating conditions, the SM-VCSEL provides a gross data-rate increase of ∼19 Gbps and an optical signal-to-noise-ratio (SNR) gain of ∼5 dB compared to its multimode counterpart having a similar modulation bandwidth. Furthermore, we demonstrate an error-free net data rate of ∼17 Gbps at a received optical power of -7 dBm, which suggests the feasibility of utilising the SM-VCSEL to realise indoor gigabit OWC applications.},
keywords = {discrete multi-tone (DMT), eye safety, optical wireless communication (OWC), singlemode vertical cavity surface emitting laser (SM-VCSEL)},
pubstate = {published},
tppubtype = {article}
}