Welcome to the Po.Li.Te blog. This is where we’ll share what we’re building, what we’re learning about VCSEL design, and news from the photonics and quantum-sensing community we work in. We’re starting with some good news.
27 mW and a new record for axial single-mode power
Our team recently set a new record for axial single-mode power in linearly-polarised VCSELs: 27 mW from a donut-shaped aperture design. The work was carried out as part of the QYRO project, which is developing the first satellite-based quantum gyroscope, and has been published in the IEEE Journal of Selected Topics in Quantum Electronics.
“Beyond 30 mW of Single-Mode Power in Linearly-Polarised VCSELs,” IEEE Journal of Selected Topics in Quantum Electronics, vol. 32, no. 6, article 1701012 (2026). doi: 10.1109/JSTQE.2026.3710026
V. Torrelli, A. Gullino, J. Lindner, G. Moiso, M. D’Alessandro, and S. Gronenborn
Why single-mode power matters
Pushing single-mode power higher without sacrificing beam quality is one of the hardest trade-offs in VCSEL design — and one of the reasons devices like satellite-based quantum gyroscopes are difficult to build. Our simulations point to 100 mW as the next milestone. It’s exactly this kind of design trade-off — aperture shape, mode control, thermal behaviour — that Po.Li.Te is built to explore quickly and rigorously.
What to expect from this blog
Alongside results like this one, we’ll post product updates, notes on new features, and perspectives on where VCSEL design is heading. If there’s a topic you’d like us to cover, let us know.
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