Second-order harmonic distortion and optimal fiber length in erbium-doped fiber amplifiers

AbstractThe aim of this paper is to analyze the performance of RAMAN amplifier (RAMAN), Erbium-doped fiber amplifiers (EDFA) and semiconductor optical amplifier (SOA) amplifiers separately at 10 Gbps data rate for 32-channel WDM system for a fiber length of 40 km to 280 km. Depending upon the results, the performance of the three amplifiers has been compared. It is observed that RAMAN amplifier provides a better result in terms of Q factor up to a fiber distance of approximately 20 km and in terms of bit error rate (BER) up to a distance of approximately 40 km among all the three amplifiers. EDFA starts providing better Q factor after a fiber distance of approximately 20 km and better BER after a fiber distance of approximately 40 km among all the three amplifiers. But power received is minimum in case of RAMAN amplifier. In terms of power received, SOA provides better result up to a fiber distance of approximately 120 km and after that EDFA provides a better result in terms of power received among all the three amplifiers. All these parameters (Q factor, BER and power received) are also analyzed for different values of laser power. Finally, the eye diagram has also been analyzed.

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The Research of Noise Figure for EDFA Performance Impact

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.981.129 ◽

2014 ◽

Vol 981 ◽

pp. 129-132

Author(s):

Qian Ru Yang ◽

Tao Shen ◽

Chang Long Tan ◽

Qiu Yu Zhao ◽

Xin Zhang ◽

...

Keyword(s):

Fiber Length ◽

Noise Figure ◽

Optical Devices ◽

Fiber Amplifiers ◽

Performance Impact ◽

Signal Light ◽

Light Amplification ◽

Erbium Doped ◽

The Impact ◽

The Relationship

Erbium-doped fiber amplifiers is a signal light amplification of optical devices. This paper analyzes the impact of various fiber parameters on the noise figure, and characteristic of noise index has been simulated by means of OASIX software. The relationship between the pump power and noise figure, and fiber length and noise figure are obtained.

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Extended Black-Box Model for Fiber Length Variation of Erbium-Doped Fiber Amplifiers

IEEE Photonics Technology Letters ◽

10.1109/lpt.2008.2006281 ◽

2008 ◽

Vol 20 (24) ◽

pp. 2063-2065 ◽

Cited By ~ 2

Author(s):

J.A.L. Villa ◽

F.B. Bo ◽

V.P. Querol ◽

A.L. Teixeira ◽

J. Prat Goma

Keyword(s):

Fiber Length ◽

Black Box ◽

Fiber Amplifiers ◽

Box Model ◽

Length Variation ◽

Erbium Doped

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Second-order distortion improvements or degradations brought by erbium-doped fiber amplifiers in analog links using directly modulated lasers

IEEE Photonics Technology Letters ◽

10.1109/68.257181 ◽

1993 ◽

Vol 5 (9) ◽

pp. 1029-1031 ◽

Cited By ~ 22

Author(s):

B. Clesca ◽

P. Bousselet ◽

L. Hamon

Keyword(s):

Second Order ◽

Fiber Amplifiers ◽

Erbium Doped ◽

Directly Modulated Lasers

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

Photonics ◽

10.3390/photonics8060185 ◽

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.

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

Journal of Optical Communications ◽

10.1515/joc-2017-0092 ◽

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.

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