Pump Laser Automatic Signal Control for Erbium-Doped Fiber Amplifier Gain, Noise Figure, and Output Spectral Power

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
I. S. Amiri ◽  
Ahmed Nabih Zaki Rashed ◽  
P. Yupapin
Keyword(s):  
Noise Figure ◽  
Spectral Power ◽  
Power Level ◽  
Fiber Amplifier ◽  
Pump Laser ◽  
Output Power Level ◽  
Signal Control ◽  
Erbium Doped Fiber Amplifier ◽  
Erbium Doped ◽  
Amplifier Gain

AbstractThis paper has simulated the pump laser automatic signal control for erbium-doped fiber amplifier gain, noise figure, and output spectral power. Signal gain and noise figure are deeply studied in relation to laser pump power variations at operating pumping wavelengths of 980 nm and 1,480 nm for previous and proposed models. Similar to the study of the light signal to noise ratio, output power level and maximum Q factor are also simulated versus EDFA amplifier length at pumping power of 500 mW and different pumping wavelength by using the proposed model. The obtained results are better by using a pumping wavelength of 1,480 nm than a pumping wavelength of 980 nm. The optimum EDFA amplifier is 5 m, which gives better performance than other amplifier lengths.

scholarly journals "Analytical Model of Pulse Amplification in Erbium Doped Fiber Amplifier "

2020 ◽  
Vol 7 (2) ◽  
pp. 39-48
Author(s):  
Nour. A. Naser ◽  
Muhammed. R. Harb ◽  
Hassan A. Yasser
Keyword(s):  
Noise Figure ◽  
Fiber Amplifier ◽  
Optical Amplifier ◽  
Ion Concentration ◽  
Laser Medium ◽  
Rate Equations ◽  
Erbium Doped Fiber Amplifier ◽  
Signal Amplifier ◽  
Erbium Doped ◽  
Amplifier Gain

"Doping a part of the optical fiber core by (Er3+ ) ions in presence of external pumping power will lead to form the erbium-doped fiber amplifier (EDFA).The performance of this optical amplifier depends on (the power and the wavelength of the pumping laser, the power and wavelength of the input signal, amplifier length, ion concentration). These parameters will affect the characteristics of EDFA such as amplifier gain, gain saturation, noise figure and output power. However, these characteristics can be determined by solving the EDFA propagation and rate equations. The solution of these equations of two-level laser medium can be done numerically. In this paper, we are proposed a novel method to solve these equations. The reconstructed results are perfectly coincided the well known numerical results.

Single Stage C-Band Erbium-Doped Fiber Amplifier (EDFA) Development and Performance Evaluation

2018 ◽  
Vol 7 (2) ◽  
pp. 41-49
Author(s):  
Sami D. Alaruri
Keyword(s):  
Conversion Efficiency ◽  
Noise Figure ◽  
Fiber Amplifier ◽  
Single Stage ◽  
Erbium Doped Fiber Amplifier ◽  
Signal Gain ◽  
Laser Pump ◽  
Mathematical Expressions ◽  
Erbium Doped ◽  
And Performance

In this work, a single-stage C-band erbium-doped fiber amplifier (EDFA) has been constructed and characterized. Gain (G) and noise figure (NF) measurements collected for the C-band EDFA as a function of wavelength (1528.8 to 1562.3 nm) and laser pump powers are discussed. Further, the EDFA conversion efficiency (CE) as a function of laser pump powers is presented. Simplified mathematical expressions for the EDFA gain, NF, and CE are provided. The C-band EDFA signal gain remained flat in the spectral region 1539 to 1562 nm. Moreover, the C-band EDFA NF increased with wavelength and decreased with the 1480 nm laser pump powers. Additionally, the C-band EDFA maximum achieved conversion efficiency and signal gain is 22.64% at P1=19.49 mW and 22.6 dB at 1531.1 nm, respectively.

L-BAND EDFA WITH INJECTION OF C-BAND ASE

2004 ◽  
Vol 13 (02) ◽  
pp. 315-319
Author(s):  
S. W. HARUN ◽  
H. AHMAD
Keyword(s):  
Noise Figure ◽  
Fiber Amplifier ◽  
Injection Technique ◽  
Small Signal Gain ◽  
Small Signal ◽  
Erbium Doped Fiber Amplifier ◽  
Gain Variation ◽  
Erbium Doped ◽  
Gain Clamping ◽  
L Band

The effect of injecting of C-band amplified spontaneous emission (ASE) from C-band erbium-doped fiber amplifier (EDFA) on the performance of L-band EDFA is demonstrated using a circulator and broadband fiber Bragg grating (FBG). Injecting a large amount of ASE (VOA=0 dB) clamps the gain at 15.2 dB from -40 to -10 dBm with a gain variation of less than 0.3 dB. Injecting a small amount of ASE (attenuation of 20 dB and above) improves the small signal gain with a negligible noise figure penalty compared to that of an amplifier without the ASE injection. A maximum gain improvement of 3.5 dB is obtained at an attenuation of 20 dB. These results show that the ASE injection technique can be used either for gain improvement or gain clamping in L-band EDFA.

Performance Analysis of WDM-PON System Based on Optimized Remotely Pumped Erbium-Doped Fiber Amplifier (EDFA) Parameter

2015 ◽  
Vol 36 (2) ◽  
Author(s):  
N. Ahmed ◽  
Hilal A. Fadhil ◽  
S. A. Aljunid ◽  
Md. Sharafat Ali ◽  
Matiur Rahman
Keyword(s):  
Output Power ◽  
Wavelength Division Multiplexing ◽  
Noise Figure ◽  
Optical Network ◽  
Fiber Amplifier ◽  
Passive Optical Network ◽  
Erbium Doped Fiber Amplifier ◽  
Wavelength Division ◽  
Erbium Doped ◽  
Wdm Pon

AbstractIn this paper, the performance of wavelength division multiplexing-passive optical network (WDM-PON) system using the erbium-doped fiber amplifier (EDFA) is optimized and evaluated. The optimization is analyzed by finding the EDFA length range at which the output power produced are the highest and the pump power range at which the gain flatness produced are within the effective range (0.3 dB). After the optimization process, the optimized EDFA system produces the gain of 26.6±0.292 dB, noise figure of 3.82 dB and output power of 7 dBm and the system is then implemented into WDM system. The performance of WDM system is compared against the system without EDFA in terms of bit error rate (BER). Results obtained prove that the proposed system with the EDFA consistently performs better than the conventional system.

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