Design and analysis of dynamic erbium-doped fiber amplifier gain-clamping systems with feedback control

2007 ◽  
Vol 24 (8) ◽  
pp. 1739 ◽  
Author(s):  
Hao Li ◽  
Ying Zhang ◽  
Yeng Chai Soh ◽  
Changyun Wen
Keyword(s):  
Feedback Control ◽  
Fiber Amplifier ◽  
Erbium Doped Fiber Amplifier ◽  
Erbium Doped ◽  
Gain Clamping ◽  
Amplifier Gain

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.

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.

Long-wavelength erbium-doped fiber amplifier gain enhanced by ASE end-reflectors

1998 ◽  
Vol 10 (11) ◽  
pp. 1551-1553 ◽  
Author(s):  
J. Nilsson ◽  
S.Y. Yun ◽  
S.T. Hwang ◽  
J.M. Kim ◽  
S.J. Kim
Keyword(s):  
Fiber Amplifier ◽  
Erbium Doped Fiber Amplifier ◽  
Long Wavelength ◽  
Erbium Doped ◽  
Amplifier Gain

Erbium-doped fiber amplifier gain-flatness of a Sagnac loop with an erbium-doped fiber

2020 ◽  
Vol 13 (5) ◽  
pp. 988-994
Author(s):  
LIU Yi ◽  
◽  
GUO Rong-rong ◽  
YI Xiao-gang ◽  
ZHENG Yong-qiu ◽  
...  
Keyword(s):  
Fiber Amplifier ◽  
Erbium Doped Fiber Amplifier ◽  
Erbium Doped ◽  
Amplifier Gain
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