Efficient High GainYtterbium Doped Lead Fluoroborate Glasses Fiber Amplifiers. University of Thi-Qar Journal of Science, [S. l.], v. 4, n. 4, p. 33–39, 2014. DOI: 10.32792/utq/utjsci/v4i4.662. Disponível em: https://jsci.utq.edu.iq/index.php/main/article/view/662.. Acesso em: 6 may. 2024.