Sotor, Jaroslaw, Grzegorz Dudzik, and Krzysztof Abramski. “Compact Single-Longitudinal Mode Microchip Laser Operating at 532 Nm”. Photonics Letters of Poland 6, no. 1 (March 31, 2014): pp. 2–4. Accessed April 25, 2024. https://www.photonics.pl/PLP/index.php/letters/article/view/6-2.