scholarly journals Development and Assessment of the New Generation Rare-Earth Doped Optical Fiber Amplifiers

2019 ◽  
Author(s):  
◽  
Ingrīda Lavrinoviča
Keyword(s):  
Rare Earth ◽  
Optical Fiber ◽  
Fiber Amplifiers ◽  
Optical Fiber Amplifiers ◽  
New Generation ◽  
Rare Earth Doped

Infrared-to-Visible Upconversion Emissions in Er3+ Doped TeO2-Based Oxyhalide Glasses

2007 ◽  
Vol 280-283 ◽  
pp. 953-956
Author(s):  
Yue Hui Liu ◽  
Hu Chen ◽  
Dong Dan Chen ◽  
Qi Yi Zhang ◽  
Zhong Hong Jiang
Keyword(s):  
Optical Fiber ◽  
Laser Power ◽  
Fiber Amplifier ◽  
Fiber Amplifiers ◽  
Optical Fiber Amplifier ◽  
Laser Systems ◽  
Optical Fiber Amplifiers ◽  
Upconversion Emissions ◽  
Further Development ◽  
Rare Earth Doped

The fluorescence and up-conversion spectral properties of Er3+-doped TeO2-ZnO and TeO2-ZnO-PbCl2 glasses suitable for developing optical fiber amplifier and laser have been fabricate and characterized. Strong green (around 527-550 nm) and red (around 661 nm) up-conversion emissions under 977 nm laser diode excitation were investigated, corresponding to 2H11/2, 4S3/2, ® 4I15/2 and 4F9/2 ® 4I15/2 transitions of Er3+ ions respectively, have beenobserved and the involved mechanisms have been explained. The dependence of up-converted fluorescence intensity versus laser power confirm that two-photons contribute to up-conversion of the green-red emissions. The novelty of this kind of optical material has been its ability in resisting devitrification, and its promising optical properties strongly encourage for their further development as the rare-earth doped optical fiber amplifiers and upconversion fiber laser systems.

Optical fiber amplifiers

2013 ◽  
pp. 281-322 ◽  
Author(s):  
Ajoy Ghatak ◽  
K. Thyagarajan
Keyword(s):  
Optical Fiber ◽  
Fiber Amplifiers ◽  
Optical Fiber Amplifiers

Optical Networks Performance Optimization Based on Hybrid Configurations of Optical Fiber Amplifiers and Optical Receivers

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
I. S. Amiri ◽  
Fatma Mohammed Aref Mahmoud Houssien ◽  
Ahmed Nabih Zaki Rashed ◽  
Abd El-Naser A. Mohammed
Keyword(s):  
Optical Fiber ◽  
Optical Networks ◽  
Wavelength Division Multiplexing ◽  
Performance Optimization ◽  
Input Power ◽  
Fiber Amplifiers ◽  
Q Factor ◽  
Wavelength Division ◽  
Transmission Distance ◽  
Optical Fiber Amplifiers

AbstractThe 16-channels dense wavelength division multiplexing (DWDM) systems have been optimized by utilizing hybrid configurations of conventional optical fiber amplifiers (EDFA, RAMAN and SOA) and optical photodetectors (PIN, APD(Si) and APD(InGaAs)). The DWDM systems were implemented for 5 Gb/s channel speed using one of these configurations with 100 GHz channel spacing and 25 km amplifying section. The hybrid configurations are the combinations of (PIN + EDFA), (PIN + RAMAN), (PIN + SOA), (APD(Si) + EDFA), (APD(Si) + RAMAN), (APD(Si) + SOA), (APD(InGaAs) + EDFA), (APD(InGaAs) + RAMAN) and (APD(InGaAs) + SOA). Based on BER, Q-factor and eye diagrams, the performance was compared for these configurations under influences of various thermal noise levels of photodetectors over different fiber lengths ranging from 25 km up to 150 km. The results revealed that both APD structures give optimum performance at input power Pin = 5 dBm due to high internal avalanche gain. EDFA outperforms RAMAN and SOA amplifiers. SOA amplifier shows degraded performance because of nonlinearity effects induced. RAMAN amplifier seems to be the best alternative for long reach DWDM systems because it minimizes the effects of fiber nonlinearities. The configuration (APD(Si) + EDFA) is the most efficient and recommended to be used for transmission distance beyond 100 km due to its larger Q-factor.

scholarly journals Site-selective spectroscopy in dysprosium-doped chalcogenide glasses for 13-m optical-fiber amplifiers

2001 ◽  
Vol 18 (10) ◽  
pp. 1436 ◽  
Author(s):  
T. Schweizer ◽  
F. Goutaland ◽  
E. Martins ◽  
D. W. Hewak ◽  
W. S. Brocklesby
Keyword(s):  
Optical Fiber ◽  
Chalcogenide Glasses ◽  
Fiber Amplifiers ◽  
Optical Fiber Amplifiers ◽  
Site Selective

Optical fiber amplifiers for optical amplitude-modulated vestigial sideband transmission systems

1993 ◽  
Vol 76 (5) ◽  
pp. 1-11
Author(s):  
Masayuki Shigematsu ◽  
Tomonori Kashiwada ◽  
Masayuki Nishimura ◽  
Hiroo Kanamori ◽  
Toshio Okitas
Keyword(s):  
Optical Fiber ◽  
Fiber Amplifiers ◽  
Transmission Systems ◽  
Optical Fiber Amplifiers
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