Parekhan M. Aljaff and Banaz O. Rasheed, Design Optimization for Efficient Erbium-Doped Fiber Amplifiers. journal = {International Journal of Physical and Mathematical Sciences}, [online]. World Academy of Science, Engineering and Technology. October 2008, vol. 22(10). 704 - 707 [viewed 20 September 2024]. Available from: https://publications.waset.org/pdf/15018.