Flat gain profile in DRA-cascaded systems with fiber repair and pumping LD failure

2002 ◽  
Author(s):  
N. Shimojoh ◽  
T. Tanaka ◽  
H. Nakamoto ◽  
T. Naito ◽  
I. Yokota ◽  
...  
Keyword(s):  
Gain Profile ◽  
Flat Gain ◽  
Cascaded Systems

Gain profile of transient collisional excitation X-ray laser

2001 ◽  
Vol 11 (PR2) ◽  
pp. Pr2-55-Pr2-57
Author(s):  
M. Tanaka ◽  
T. Kawachi ◽  
M. Kado ◽  
N. Hasegawa ◽  
K. Sukegawa ◽  
...  
Keyword(s):  
Collisional Excitation ◽  
X Ray ◽  
Gain Profile

Optimal design of flat-gain wide-band fiber Raman amplifiers

2002 ◽  
Vol 20 (2) ◽  
pp. 250-254 ◽  
Author(s):  
V.E. Perlin ◽  
H.G. Winful
Keyword(s):  
Optimal Design ◽  
Wide Band ◽  
Raman Amplifiers ◽  
Flat Gain

scholarly journals Performance Analysis of Flat Gain Wideband Raman Amplifier for S+C and C+L Band DWDM System

2018 ◽  
Vol 2018 ◽  
pp. 1-7
Author(s):  
Dipika D. Pradhan ◽  
Abhilash Mandloi
Keyword(s):  
Pump Power ◽  
Noise Figure ◽  
Excited State Absorption ◽  
Telecommunication Networks ◽  
Raman Amplifier ◽  
Gain Flattening ◽  
L Band ◽  
Flat Gain ◽  
Amplifier Design ◽  
Dwdm System

Raman amplifier is an open area of research in telecommunication field. This paper discusses the performance of 64 channels of 10 Gbps WDM systems with backward multipump Raman amplifier. The main goal of this paper is the optimization of Raman amplifier to minimize its gain variation without using any gain flattening techniques. To increase the transmission capacity of DWDM system, Raman amplifier with backward multipump configuration is implemented. The optimized parameters such as pump power and frequencies are used to deliver both ground and excited state absorption for amplification in S+C and C+L band region. The pump power and frequencies are optimized through multitarget and multiparameter optimization tool available in OptiSystem software. Gain ripple was achieved <0.5 dB for this simulation setup. The maximum flat gain achieved is 8.6 dB and noise figure of <8 dB was achieved for this wide bandwidth without using gain flattening techniques. This amplifier design will be helpful for CATV applications and telecommunication networks.

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