Gain and noise characteristics of distributed erbium-doped fiber amplifiers for analog transmission

1992 ◽  
Author(s):  
Masayuki Shigematsu ◽  
Akira Urano ◽  
Tomonori Kashiwada ◽  
Hiroo Kanamori ◽  
Masayuki Nishimura
Keyword(s):  
Fiber Amplifiers ◽  
Noise Characteristics ◽  
Erbium Doped ◽  
Analog Transmission

scholarly journals Experimental Measurement of Absorption Coefficients for Effective Erbium-Doping Concentration to Optimize Few-Mode Erbium-Doped Fiber Amplifiers with Low Differential Mode Gain

Photonics ◽  
2021 ◽  
Vol 8 (6) ◽  
pp. 185
Author(s):  
Yan Xu ◽  
Baojian Wu ◽  
Xinrui Jiang ◽  
Haomiao Guo ◽  
Feng Wen
Keyword(s):  
Doping Concentration ◽  
Point Of View ◽  
Fiber Amplifiers ◽  
Efficient Design ◽  
Absorption Loss ◽  
Differential Mode ◽  
Transmission Method ◽  
Modal Gain ◽  
Analysis Process ◽  
Erbium Doped

According to the analytical expression for modal gain of few-mode erbium-doped fiber amplifiers (FM-EDFAs), we propose a method of measuring the absorption loss coefficients of few-mode signals in few-mode erbium-doped fibers (FM-EDFs) by extrapolating the mode–gain curve dependent on the average population inversion. The absorption loss coefficient of an FM-EDF was measured in our experimental platform and used to estimate the effective erbium-ion doping concentration. The feasibility of the extrapolation method was verified by simulation and comparison with the transmission method. Furthermore, the FM-EDFAs with high modal gain and low differential mode gain (DMG) could be optimized by adjusting the FM-EDF’s length and pump power. The analysis process presented here is very useful for the efficient design of FM-EDFAs from a practical point of view.

Investigations of Different Amplifiers in 16 × 40 Gb/S WDM System

2019 ◽  
Vol 40 (4) ◽  
pp. 341-346
Author(s):  
Kulwinder Singh ◽  
Karan Goel ◽  
Kamaljit Singh Bhatia ◽  
Hardeep Singh Ryait
Keyword(s):  
Wavelength Division Multiplexing ◽  
Fiber Amplifier ◽  
Optical Amplifier ◽  
Fiber Amplifiers ◽  
Erbium Doped Fiber Amplifier ◽  
Wavelength Division ◽  
Transmission Distance ◽  
Erbium Doped ◽  
Eye Opening ◽  
Eye Closure

Abstract Different fiber amplifiers such as semiconductor optical amplifier, erbium-doped fiber amplifier and erbium ytterbium-co-doped fiber amplifier (EYCDFA) are investigated for 16×40 GB/s wavelength division multiplexing system. Various performance parameters including Q-factor, bit error rate, jitter, eye opening and eye closure are observed and analyzed. It is reported that EYCDFA is a better choice among the tested amplifiers. The proposed system is also investigated in terms of transmission distance.

Optimized radiation-hardened erbium doped fiber amplifiers for long space missions

2017 ◽  
Vol 121 (16) ◽  
pp. 163104 ◽  
Author(s):  
A. Ladaci ◽  
S. Girard ◽  
L. Mescia ◽  
T. Robin ◽  
A. Laurent ◽  
...  
Keyword(s):  
Space Missions ◽  
Fiber Amplifiers ◽  
Erbium Doped ◽  
Radiation Hardened
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