Physics you can check. Published and peer-reviewed.
The Po.Li.Te engines descend from the team’s own published work, presented at IEEE conferences and reviewed by leading photonics journals. Here is where to read it, and where to follow what comes next.
Our team set a new record for axial single-mode power in linearly-polarised VCSELs: 27 mW from a donut-shaped aperture design, developed as part of the QYRO project toward the first satellite-based quantum gyroscope. Simulations point to 100 mW as the next milestone.
Selected list of scientific publications
V. Torrelli, A. Gullino, J. Lindner, G. Moiso, M. D’Alessandro, and S. Gronenborn, “Beyond 30 mW of Single-Mode Power in Linearly-Polarised VCSELs,” in IEEE Journal of Selected Topics in Quantum Electronics, vol. 32, no. 6, no. 1701012 (2026), doi: 10.1109/JSTQE.2026.3710026
M. D’Alessandro, V. Torrelli, A. Gullino, M. G. C. Alasio, A. Nespola, S. Romero García, and P. Debernardi, “Design and modeling of asymmetric bow-tie VCSELs for 100 GHz and beyond,” in Optics Express 34, 7979-7995 (2026), doi: 10.1364/OE.578425
V. Torrelli, M. D’Alessandro, A. Gullino, M. G. C. Alasio, A. Tibaldi, C. Chang-Hasnain, and P. Debernardi, “Elliptically polarized light obtained from tilted high-contrast grating VCSELs,” in Optics Letters 51, 29-32 (2026), doi: 10.1364/OL.583070
V. Torrelli, L. Miri, M. D’Alessandro, A. Gullino, M. Zimmer, K. Dahler, M. Jetter, P. Michler, W. Elsäßer, F. Bertazzi, A. Tibaldi, and P. Debernardi, “Elliptical polarization in VCSELs via joint interaction of a tilted sub-wavelength grating and intrinsic semiconductor anisotropies,” in Optics Letters 50, 3082-3085 (2025), doi: 10.1364/OL.557703
M. D’Alessandro, V. Torrelli, F. Bertazzi, M. Goano, N. N. Ledentsov, M. Lindemann, M. Gioannini, P. Debernardi, A. Tibaldi, “Transverse Coupled Cavity VCSELs: Bridging Ultrabroadband Dynamics to Optical Supermodes,” in IEEE Photonics Journal, vol. 16, no. 2, pp. 1-7, no. 0600807 (2024), doi: 10.1109/JPHOT.2024.3373171.
N. Ledentsov Jr., V. A. Shchukin, Ł. Chorchos, O. Yu. Makarov, J.-R. Kropp, I. E. Titkov, V. P. Kalosha, V. Zerova, M. Lindemann, N. C. Gerhardt, M. D’Alessandro, V. Torrelli, P. Debernardi, A. Tibaldi, M. R. Hofmann, N. N. Ledentsov, “Analysis of laterally-coupled-cavity VCSELs for ultra-high-frequency photon-photon resonance modulation,” in Proc. SPIE 12904, Vertical-Cavity Surface-Emitting Lasers XXVIII, 1290405 (13 March 2024), doi: 10.1117/12.3001177
V. Torrelli, M. D’Alessandro, W. Elsäßer, and P. Debernardi, “On-demand polarization by a vertical-cavity surface-emitting laser with two tilted sub-wavelength gratings,” in Optics Letters 49, 3773-3776 (2024), doi: 10.1364/OL.528268
V. Torrelli, A. Gullino, A. Tibaldi, F. Bertazzi, M. Goano and P. Debernardi, “High-Power Emission via Large-Area VCSELs With Single High-Order Mode Operation,” in IEEE Photonics Journal, vol. 16, no. 2, pp. 1-7, no. 0600507 (2024), doi: 10.1109/JPHOT.2024.3360992
A. Gullino, V. Torrelli, M. D’Alessandro, A. Tibaldi, F. Bertazzi, M. Goano, P. Debernardi, “AlGaAs Tunnel Junction (TJ)-VCSELs: A NEGF–Drift-Diffusion Approach,” in IEEE Photonics Journal, vol. 16, no. 2, pp. 1-9, no. 0600409 (2024), doi: 10.1109/JPHOT.2024.3360897
A. Tibaldi, J. A. G. Montoya, M. G. C. Alasio, A. Gullino, A. Larsson, P. Debernardi, M. Goano, M. Vallone, G. Ghione, E. Bellotti, F. Bertazzi, “Analysis of Carrier Transport in Tunnel-Junction Vertical-Cavity Surface-Emitting Lasers by a Coupled Nonequilibrium Green’s Function–Drift-Diffusion Approach,” in Physical Review Applied, vol. 14, no. 2, p. 024037 (2020), doi: 10.1103/PhysRevApplied.14.024037
Notes, events and news.
Blog
Notes and results on VCSEL design, semiconductor transport modeling and multiphysics simulation.
Meet the people behind the physics.
Researchers in VCSEL physics and semiconductor device modeling, working with the platform every day.