Experimental Investigation of pump propagating direction in double-pass Er3+-doped fiber amplifiers. - K. A. Khairi; Faisal Rafiq M. Adikan; Ahmed W. Naji; Mohammed Hayder Al-Mansoori; Mohd Adzir Mahdi (IEICE Electron. Express, 2005)

Numerical analysis and optimization of remotely pumped double pass Erbium doped fiber amplifier. - Nadir Hossain; Ahmed W. Naji; Vivekanand Mishra; Fouad Mohammed Abbou; Hairul A. Abdul-Rashid; Faidz Abdul Rahman (IEICE Electron. Express, 2007)