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Recently emerged “quantum technologies” motivate researchers and engineers to develop a specific class of light sources. The expected devices should emit spectrally narrow and tunable light with excellent beam properties. Semiconductor laser diodes are the light source of choice for these applications. InGaN laser diodes, emitting in the visible part of the spectrum, should play very important role in these applications. Within this presentation we will describe InGaN external cavity laser diodes, semiconductor optical amplifiers and distributed feedback lasers. We will discuss the progress in development of these devices as well as main physical and technological challenges.
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Piotr Perlin, Anna Kafar, Szymon Stanczyk, Dario Schiavon, Lucja Marona, "GaN laser diodes for quantum technologies," Proc. SPIE PC12001, Gallium Nitride Materials and Devices XVII, PC120010N (5 March 2022); https://doi.org/10.1117/12.2608751