scholarly journals Optical Fiber Amplifiers and Their Applications. Optical Fiber Amplifier for Multi-Channel Transmission.

1997 ◽  
Vol 25 (2) ◽  
pp. 164-166
Author(s):  
Atsushi TOYOHARA ◽  
Hideki OKUNO ◽  
Masashi ITABASHI ◽  
Takefumi OGUMA ◽  
Jun YOKOYAMA ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Fiber Amplifier ◽  
Fiber Amplifiers ◽  
Optical Fiber Amplifier ◽  
Optical Fiber Amplifiers

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.

Dy3+-doped chalcohalide glass for 1.3-μm optical fiber amplifiers

2008 ◽  
Vol 23 (4) ◽  
pp. 954-961 ◽  
Author(s):  
Gao Tang ◽  
Zhiyong Yang ◽  
Lan Luo ◽  
Wei Chen
Keyword(s):  
Optical Fiber ◽  
Near Infrared ◽  
Fiber Amplifier ◽  
Fiber Amplifiers ◽  
Molar Ratio ◽  
Thermal Stabilities ◽  
Optical Fiber Amplifier ◽  
Chalcohalide Glasses ◽  
Doped Glasses ◽  
Optical Fiber Amplifiers

Dy3+-doped GeSe2–Ga2Se3–CsI chalcohalide glasses were prepared. The thermal stabilities, optical properties, emission properties, and structure of the glasses were investigated. Upon excitation with a 808-nm diode laser, 1.32-μm near-infrared fluorescence was observed with a broad full width at half-maximum of about 90 nm. It was found the 1.32-μm fluorescence lifetime of the Dy3+-doped GeSe2–Ga2Se3–CsI glass depends on the I/Ga molar ratio and the amount of Ga2Se3 and CsI. The longest lifetime is >2.5 ms. It is noted that the value is significantly higher than those in other Dy3+-doped glasses. The enhancement of lifetime can be attributed to a decreased local phonon mode, which dominates the multiphonon relaxation. Meanwhile, it is interesting to note that the GeSe2–Ga2Se3–CsI glasses have shown good infrared transmittance. As a result, Dy3+-doped GeSe2–Ga2Se3–CsI glasses have been considered to be an attractive host for a 1.3-μm optical fiber amplifier.

Hybrid L-Band Optical Fiber Amplifier Module with Erbium-Doped Fiber Amplifiers and Semiconductor Optical Amplifier

2004 ◽  
Vol 43 (8A) ◽  
pp. 5357-5358 ◽  
Author(s):  
Chien-Hung Yeh ◽  
Kuo-Hsiang Lai ◽  
Ying-Jie Huang ◽  
Chien-Chung Lee ◽  
Sien Chi
Keyword(s):  
Optical Fiber ◽  
Semiconductor Optical Amplifier ◽  
Fiber Amplifier ◽  
Optical Amplifier ◽  
Fiber Amplifiers ◽  
Optical Fiber Amplifier ◽  
Erbium Doped ◽  
L Band

scholarly journals Optical Fiber Amplifiers: Optimization and PerformanceEvaluation

2019 ◽  
Vol 12 (1) ◽  
pp. 66-72
Author(s):  
A. K. Abass
Keyword(s):  
Pump Power ◽  
Optical Fiber ◽  
Noise Figure ◽  
Fiber Amplifier ◽  
Fiber Amplifiers ◽  
Erbium Doped Fiber Amplifier ◽  
Gain Variation ◽  
Erbium Doped ◽  
Raman Fiber Amplifier ◽  
Optical Fiber Amplifiers

This work demonstrates the simulation of two different types of optical fiber amplifiers (OFA) utilizing OptiSystem–10, namely, 3 m length of erbium doped fiber amplifier (EDFA) and 7 km length of Raman fiber amplifier (RFA). The counter-pumped architecture is adopted for both proposed optical amplifiers. The optimum pump power (OPP) for each amplifier determines in which the longest 3–dB flat gain bandwidth (3–dB BW), reasonable average gain level (Gav), proper average noise figure (NFav) and lower gain variation (Gvar) were achieved. The EDFA shows best performance at conventional band (C–band) within the pump power of 30 mW.While the better performance is observed at long band (L–band) within the pump power of 600 mW for the RFA.

Optical fiber amplifiers

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

Wide band fiber systems and long transmission applications based on optimum optical fiber amplifiers lengths

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Mahmoud M. A. Eid ◽  
Vishal Sorathiya ◽  
Sunil Lavadiya ◽  
Huda Said Abd El-Hamid ◽  
Ahmed Nabih Zaki Rashed
Keyword(s):  
Power Level ◽  
Wide Band ◽  
Signal Amplitude ◽  
Fiber Amplifier ◽  
Noise Signal ◽  
Fiber Amplifiers ◽  
Fiber System ◽  
Optical Fiber Amplifiers ◽  
Amplitude Level ◽  
Program Version

Abstract Article clarified the optimum fiber amplifiers length for wide band fiber system applications. Optical suppressed carrier transceiver with various fiber amplifier lengths in long haul applications is simulated by using optisystem simulation program version 13. Max. Q coefficient and min. BER can be tested for various fiber amplifiers lengths from 5 to 30 m. The optimum performance efficiency is achieved with 5 m amplifier length which the max. Q coefficient is 62.5 and bits error rate is tended to zero. Peak power amplitude level, noise signal power level, noise signal amplitude level (NSAL) and peak signal amplitude level after channel with a 45 km length for optimum fiber optic amplifier length of 5 m are measured.

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