News: Suppliers
7 November 2025
Photon Design taking PCSEL simulation solution to PCSEL 2025 workshop
Photonic simulation CAD software developer Photon Design Ltd of Oxford, UK is taking its PCSEL simulation solution to the International Workshop on PCSELs 2025 at the University of Glasgow, UK (10–12 November).
PCSEL 2025 provides a platform for presenting research findings and discussing developments in photonic crystal surface-emitting laser device design, engineering and manufacturing technologies. The conference also addresses emerging opportunities for this type of laser, which is particularly suited to high-coherent-power applications in datacoms, telecoms, sensing, and material processing markets.
“PCSELs are challenging to model, due to their complex crystal structures,” says Photon Design’s CEO Dr Dominic Gallagher. “However, using both our HAROLD and OmniSim simulation tools makes it possible. HAROLD simulates the gain spectra in the PCSELs epitaxy structure, while OmniSim, an FDTD (finite-difference time-domain)-based, dynamic gain modeller, simulates how pulsed laser light propagates through the laser over time. OmniSim’s Q-factor calculator can determine operating wavelength and linewidth results 85% faster than conventional simulators, with equivalent accuracy. It also generates band diagrams for photonic crystal structures, which can then be optimized using our Kallistos simulator.”
The PCSEL 2025 workshop spans three days with lectures and invited talks from PCSEL experts, covering key topics such as high-power indium phosphide (InP)-based PCSELs, GaN implementations and photonic crystal integration. This year, the workshop is held in conjunction with the International Symposium on Photonic and Electromagnetic Crystal Structures (PECS-XIV). Keynote address are being delivered by professor Susumu Noda of Kyoto University, with academic speakers from Aston, Illinois, Peking and Kyoto universities and industrial representatives from Sumitomo Electric, Hamamatsu Photonics, Stanley Electric and Huawei UK.
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Photon Design exhibiting product range at ECOC 2025
