1. A. S. Kyuregyan, Semiconductors 48, 1645 (2014).
2. V. Morozov, A. Olenin, V. Tunkin, and D. Yakovlev, Fotonika, No. 1, 34 (2008).
3. V. Kisel’ and A. Gulevich, Fotonika, No. 2, 20 (2011).
4. P. P. Vasil’ev, Sov. J. Quantum Electron. 20, 209 (1990).
5. http://www.optophase.com/als_laser.html; http://www. onefive.com/products.html; http://www.laser2000.co.uk/ product.php?no=15185