Investigation of Pump Wavelength Dependence of Long-Wavelength-Band Erbium-Doped Fiber Amplifier using 1530 nm-Band Pump for WDM Amplification

Author(s):  
Bo-Hun Choi ◽  
Hyo-Hoon Park ◽  
Moojung Chu
ETRI Journal ◽  
2001 ◽  
Vol 23 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Bo-Hun Choi Choi ◽  
Moo-Jung Chu Chu ◽  
Hyo-Hoon Park Park ◽  
Jong-Hyun Lee Lee

2019 ◽  
Vol 40 (2) ◽  
pp. 101-107 ◽  
Author(s):  
Deepti Ahlawat ◽  
Payal Arora ◽  
Suresh Kumar

Abstract Analysis of wavelength division multiplexing (WDM) system utilizing erbium-doped fiber amplifier (EDFA) has been carried out by many researchers. In this paper, the performance analysis of 8-channel WDM system utilizing EDFA and fiber Bragg grating (FBG) combination is carried out in a wavelength band 1546–1552 nm at 10 Gbps. The performance of three apodization functions (Uniform, Gaussian and Tanh) of FBG is compared using return-to-zero (RZ) and non-return-to-zero modulation formats at fiber lengths 50, 60, 70 and 80 km. Also, the performance of FBG is compared for both aspects: with chirp and without chirp for grating lengths 5–10 mm. The Gaussian apodized and linearly chirped FBG outperformed the other two in compensating chromatic dispersion. Optimum values of Q-factor are also obtained using linearly chirped FBG with RZ modulation format at 10 mm of grating length.


1998 ◽  
Vol 10 (11) ◽  
pp. 1551-1553 ◽  
Author(s):  
J. Nilsson ◽  
S.Y. Yun ◽  
S.T. Hwang ◽  
J.M. Kim ◽  
S.J. Kim

1970 ◽  
Vol 4 (1) ◽  
Author(s):  
S. W. Harun and H. Ahmad

An experiment on gain enhancement in the long wavelength band erbium doped fiber amplifier (L-band EDFA) is demonstrated. It uses a dual stage technique with dual forward pumping scheme. Compared to a conventional single stage amplifier, the small signal gain for 1580nm signal can be improved by 5.5dB without paying much noise figure penalty. The corresponding noise figure penalty was 0.3dB due to the insertion loss of the optical isolator. The optimum pump power ratio for the first pump is experimentally determined to be 33%. The maximum gain improvement of 8.3dB was obtained at a signal wavelength of 1568nm while signal and total pump powers were fixed at -30dBm and 92mW, respectively. The employment of dual stage amplifier system seems to play an important role in the development of practical L-band EDFA from the perspective of economical usage of pump power.Key Words:  erbium doped fibre; optical amplifier; L-band EDFA; dual stage EDFA; amplified spontaneous emission


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