It is crucial to study the effect of radiation on the fiber amplifier
devices. In the present paper, the Erbium-ytterbium co-doped fiber amplifier
(EYDFA) has been irradiated by a neutron beam of different doses for various
exposure times from an Am-241/Be-9 neutron source. The gain and noise figure of
the EYDFA have been calculated theoretically and recorded after and before the
irradiation to test its performance under the effect of irradiation. In order
to show the enhancement in the gain of the fiber amplifier devices, a
comparison between the gain of the irradiated EYDFA and Erbium doped Fiber
amplifier (EDFA) has been carried out. The calculated results by the proposed
model are in good agreement with the experimental ones. It indicates that the
gain of EYDFA deteriorates after being irradiated by a neutron dose. Moreover,
the gain of irradiated EYDFA has been reduced to 13.8 dB at a dose of 720 Gy.
Cite this paper
Nafee, S. and Hamdalla, T. (2014) Modeling and Experiments of the Gain and Noise Figure for an Irradiated Erbium-Ytterbium Co-Doped Fiber Amplifier. Journal of Analytical Sciences, Methods and Instrumentation
, 53-61. doi: 10.4236/jasmi.2014.42008
 Desturvire, E. (1994) Erbium Doped Amplifier. John Wiley and Sons, Inc., New York.
 Cheng, Z., Song, F., Zou, C., Su, R. and Jiang, S. (2008) Numerical Investigation of Gain Characteristics of Er/Yb CoDoped Fiber Amplifier. Optical and Quantum Electronics, 40, 1021-1031. http://dx.doi.org/10.1007/s11082-009-9295-0
 Morkel, P., Taylor, E. and Payne, D. (1993) Direct Observation of Cooperative up Conversion Mechanics in EDFA. Presented at ECOC 93, Monteux.
 Abdel hakiem, M., El-Astal, A. and El-Nahal, F. (2011) The Gain and Noise Figure of Yb-Er Co-Doped Fiber Amplifiers Based on the Temperature-Dependent Model. Optical Materials, 33, 543-548.
 Hamdalla, T. and Nafee, S. (2013) Experimental and Theoretical Studies for the Gain of the Neutron Irradiated Erbium Doped Fiber Amplifier. Current Applied Physics, 13, 981-984. http://dx.doi.org/10.1016/j.cap.2013.01.043
 Harun, S., Abdul-Rashid, H., Yassin, S., Rahamn, M. and Ahmad, H. (2008) 37.2 dB Small Signal Gain from Er/Yb Co-Doped Fiber Amplifier with 20 mW Pump Power. Optics Laser Technology, 40, 88-91. http://dx.doi.org/10.1016/j.optlastec.2007.03.010
 Hamdalla, T. and Nafee, S. (2014) Radiation Effects on the Gain of Thulium Doped Fiber Amplifier: Experiment and Modeling. Optics Laser Technology, 55, 46-49.
 Di Pasquale, F. and Federighi, M. (1994) Improved Gain Characteristics in High Concentration Er3+/Yb3+ Codoped Glass Waveguide Amplifies. IEEE Journal of Quantum Electronics, 30, 2127-2131. http://dx.doi.org/10.1109/3.309873
 Berkedmir, C. and Ozsoy, S. (2008) Numerical Analysis of the Signal Gain and Noise Figure of Yb3/Er3 Doped Fiber Amplifier at Different Pumping Power Configurations. Optical Materials, 31, 229-232. http://dx.doi.org/10.1016/j.optmat.2008.03.016
 Amersham (1976) Neutron Sources Americium-241/Beryllium and Californium-252. Technical Bulletin, 76.
 Vitorelli, J.C., Silva, A.X., Crispim, V.R., Da Fonseca, E.S. and Pereira, W.W. (2005) Monte Carlo Simulation of Response Function for a NaI (Tl) Detector for Gamma Rays from 241 Am/Be Source. Applied Radiation and Isotopes, 62, 619-622. http://dx.doi.org/10.1016/j.apradiso.2004.07.010
 Fernandez, A., Gusarov, A., Bodart, B., Lammens, K. and Delchamber, A. (2002) Temperature Monitoring of Nuclear Reactor Cores with Multiplexed Fiber Bragg Grating Sensor. Optical Engineering, 41, 1246-1254. http://dx.doi.org/10.1117/1.1475739
 Fernandez, A., Brichard, B., Berghmans, F. and Decretion, M. (2002) Dose Rate Dependence in Gamma Irradiated in Fiber Bragg Gratings. IEEE Transactions on Nuclear Science, 49, 2874-2878. http://dx.doi.org/10.1109/TNS.2002.805985
 Gusarov, A., Fernandez, A., Vasiliev, F.S., Medvedkov, O., Blondel, M. and Berghmans, F. (2002) Effect of Gamma Neutron Nuclear Reactor on the Properties of Bragg Grating Written in Photosensitive Gr-doped fiber. Nuclear Instruments and Methods in Physics Research Section B, 187, 79-86. http://dx.doi.org/10.1016/S0168-583X(01)00829-1