Nguyen, Thanh Phuong. “Spectral Properties and Beam Quality of Long Cavity High Power Semiconductor Tapered Lasers Emitting at Red Region Using Reflecting Bragg Grating”. Old Journal, no. 137 (September 15, 2019): 80–83. Accessed August 2, 2025. https://jst.vn/index.php/old/article/view/613.