C band erbium doped fiber amplifier as a flat gain optical amplifier

2008 ◽  
Author(s):  
Murat Yucel ◽  
H. Haldun Goktas
Keyword(s):  
Fiber Amplifier ◽  
Optical Amplifier ◽  
Erbium Doped Fiber Amplifier ◽  
Erbium Doped ◽  
Flat Gain

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.

scholarly journals Comparative Analysis of Erbium Doped Fiber Amplifier (EDFA) and Raman Optical Amplifier (ROA) in Nonlinear-CWDM System

2018 ◽  
Vol 10 (3) ◽  
pp. 144
Author(s):  
Dodi Zulherman ◽  
Sri Utami ◽  
Fahmi Fahmi
Keyword(s):  
Wavelength Division Multiplexing ◽  
System Performance ◽  
Fiber Amplifier ◽  
Optical Amplifier ◽  
High Rate ◽  
Telecommunication Service ◽  
Raman Amplification ◽  
Erbium Doped Fiber Amplifier ◽  
Large Bandwidth ◽  
Erbium Doped

The massive demands for high-rate application drove the telecommunication service to use large bandwidth capacity. The Coarse Wavelength Division Multiplexing (CWDM), a common use in Metro-WDM, can be a solution to provide large bandwidth in optical communications. In a communications system, there are attenuation and nonlinear effect decreasing the system performance. In order to overcome the limitation imposed by electrical regeneration to maintain system performance, a means of optical amplification was sought. In this paper presents the comparison of two competing technologies emerged: Erbium Doped Fiber Amplifier (EDFA) and Raman Optical Amplifier (ROA) to overcome the attenuation in the nonlinear system. We designed the CWDM system using 8 channels with 20 nm channel spacing and 60 km length. The result was conducted by varying the CW Laser power using -8, -6, -4, -2, 0, 2, 4, and 6 dBm. Based on the result of the research, raman amplification can maintain the BER and the Q-factor of the CWDM system better than EDFA. In addition, the received power in raman amplification larger than that received in EDFA. In conclusion,a CWDM system using ROA amplifier has better performance for the system than using EDFA amplifier.

scholarly journals Wideband and flat gain series erbium doped fiber amplifier using hybrid active fiber with backward pumping distribution technique

2019 ◽  
Vol 13 ◽  
pp. 102186 ◽  
Author(s):  
Alabbas A. Al-Azzawi ◽  
Aya A. Almukhtar ◽  
B.A. Hamida ◽  
S. Das ◽  
A. Dhar ◽  
...  
Keyword(s):  
Fiber Amplifier ◽  
Erbium Doped Fiber Amplifier ◽  
Active Fiber ◽  
Erbium Doped ◽  
Flat Gain

OPTICAL AMPLIFIER WITH FLAT-GAIN AND WIDEBAND OPERATION UTILIZING HIGHLY CONCENTRATED ERBIUM-DOPED FIBERS

2012 ◽  
Vol 21 (01) ◽  
pp. 1250005
Author(s):  
B. A. HAMIDA ◽  
X. S. CHENG ◽  
A. W. NAJI ◽  
H. AHMAD ◽  
W. AL-KHATEEB ◽  
...  
Keyword(s):  
Optical Networks ◽  
Wavelength Division Multiplexing ◽  
Noise Figure ◽  
Wavelength Region ◽  
Optical Amplifier ◽  
Gain Spectrum ◽  
Double Pass ◽  
Erbium Doped Fiber Amplifier ◽  
Erbium Doped ◽  
Flat Gain

In this paper, we proposed a flat-gain and wide-band erbium doped fiber amplifier (EDFA) using two chirped fiber Bragg grating (CFBG) in serial configuration for double-pass operation. The amplifier consists of two sections of Erbium-doped fiber (EDF) operating in C-band and L-band respectively. A CFBG is used in each section to reflect the amplified signal back to the active area so that the overall gain spectrum can be enhanced and flattened. It is also observed that the gain of the amplifier produces a relatively higher gain with the Bismuth-based EDF (Bi-EDF) in the first stage compared to that of silica-based EDF (Si-EDF), especially in a longer wavelength region. The small signal gain of more than 19 dB is obtained within a wavelength region from 1545 to 1605 nm by the use of Bi-EDF with a small noise figure penalty. With a Si-EDF, the flat gain spectrum is observed within a wavelength region ranging from 1535 nm to 1605 nm with a gain variation of less than 2 dB at input signal of 0 dBm. This shows that the proposed serial double-pass amplifier may find its broad applications in wavelength division multiplexing long-haul systems as well as local optical networks.

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