Sobczyk, Artur, Jarosław Suszek, Andrzej Kołodziejczyk, and Maciej Sypek. 2016. “The Concentration of Energy from Edge Lasers by Diffractive Optical Component”. Photonics Letters of Poland 8 (4):pp. 122-124. https://doi.org/10.4302/photon. lett. pl.v8i4.678.