In one sentence: A quantum dot laser is a semiconductor laser whose gain medium contains nanoscale quantum dots that confine electrons and holes in all three dimensions, producing discrete energy ...

Ultralow-noise laser sources are crucial for a variety of applications, including microwave synthesizers, optical gyroscopes and the manipulation of quantum systems. Silicon photonics has emerged as a ...

The National Institute of Information and Communications Technology of Japan, in collaboration with Sony Semiconductor Solutions Corporation (Sony), has developed the world's first practical ...

Mid-infrared semiconductor lasers operating in the 2.0–5.0 µm window have attracted significant interest for applications including trace-gas detection, molecular spectroscopy, free-space optical ...

South Korean researchers have successfully developed technology to mass-produce quantum dot lasers, widely used in data centers and quantum communications. This breakthrough paves the way for reducing ...

The integration of semiconductor lasers into photonic integrated circuits (PICs) is essential for scalable, energy-efficient optical systems, yet reflections from on-chip components inevitably ...

Mid-infrared light sources serve as a key to accessing the “invisible world.” A broad range of applications, including gas detection, molecular spectroscopy, medical diagnostics, and free-space ...

Lasers that are fabricated directly onto silicon photonic chips offer several advantages over external laser sources, such as greater scalability. Furthermore, photonic chips with these ...