TY - JFULL AU - Parekhan M. Aljaff and Banaz O. Rasheed PY - 2008/11/ TI - Design Optimization for Efficient Erbium-Doped Fiber Amplifiers T2 - International Journal of Physical and Mathematical Sciences SP - 703 EP - 707 VL - 2 SN - 1307-6892 UR - https://publications.waset.org/pdf/15018 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 22, 2008 N2 - The exact gain shape profile of erbium doped fiber amplifiers (EDFA`s) are depends on fiber length and Er3 ion densities. This paper optimized several of erbium doped fiber parameters to obtain high performance characteristic at pump wavelengths of λp= 980 nm and λs= 1550 nm for three different pump powers. The maximum gain obtained for pump powers (10, 30 and 50mw) is nearly (19, 30 and 33 dB) at optimizations. The required numerical aperture NA to obtain maximum gain becomes less when pump power increased. The amplifier gain is increase when Er+3doped near the center of the fiber core. The simulation has been done by using optisystem 5.0 software (CAD for Photonics, a license product of a Canadian based company) at 2.5 Gbps. ER -