Optica

Optica: Dynamic gratings enable high-performance tunable quantum-dot lasers

1 min read · Tue, Apr 14 2026

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Optica integrated photonics publication

Single-mode, widely tunable semiconductor lasers are essential for coherent communications, precision sensing, and reconfigurable photonic systems. Yet many existing approaches rely on regrowth, etched gratings, or other fabrication-intensive strategies that increase complexity and constrain scalability. In their new Optica paper, “ Mode control and dynamic population gratings in quantum-dot lasers,” researchers from KAUST’s Integrated Photonics Lab demonstrate an alternative mode-control mechanism that does not depend on such complex fabrication steps. The key idea is to exploit dynamic

New publication on Optica!

1 min read · Fri, Jul 19 2024

Ultra-narrow-linewidth hybrid-integrated self-injection locked laser at 780 nm | Optica Narrow-linewidth lasers are essential across a wide range of applications, including classical and quantum sensing, trapped ion systems, position/navigation/timing systems, optical clocks, and microwave frequency synthesizers. In the visible and near-visible spectrum, low-noise lasers are particularly important for laser trapping and cooling techniques, which are vital for trapped ion quantum computing, sensing, and atomic clocks. In this context, our work showcases a hybrid-integrated narrow-linewidth