scholarly journals Study on soliton pulse and its characteristics for fiber optic communication

2018 ◽  
Vol 7 (4) ◽  
pp. 2845
Author(s):  
M. Bhuvaneshwari ◽  
Dr. ShaziaHasan ◽  
Dr. Abdul Razak
Keyword(s):  
Optical Communication ◽  
Electromagnetic Interference ◽  
Communication Systems ◽  
Optical Amplifiers ◽  
Human Beings ◽  
Soliton Pulse ◽  
Optical Communication Systems ◽  
Fiber Optic Communication ◽  
High Bit Rate ◽  
Optic Communication

From time immemorial communication is an essential need for human beings. Communication happens through the channel. Among many channels for communication, Fiber is a vital wired channel that has infinite bandwidth and high noise immunity against electromagnetic interference. The phenomenon of dispersion is the major problem for high bit rate and long-haul optical communication systems. An easy solution to this problem is optical Solitons - Pulses that preserve their shape over long distances. Soliton based optical communication systems establish over distances of several thousands of kilometers with considerable information carrying capacity by using optical amplifiers.  

A Review on Hybrid Optical Amplifiers

2018 ◽  
Vol 39 (3) ◽  
pp. 267-272 ◽  
Author(s):  
Mehtab Singh
Keyword(s):  
Optical Communication ◽  
Communication Systems ◽  
Optical Amplifiers ◽  
Low Cost ◽  
Transmission System ◽  
Optical Link ◽  
Efficient Performance ◽  
Optical Communication Systems

Abstract The implementation of hybrid optical amplifiers has led to the emergence of DWDM in optical communication systems. By implementation of hybrid optical amplifiers, the performance of DWDM transmission can be enhanced. In this paper, different configurations of hybrid optical amplifiers are discussed which can be implemented at low cost and efficient performance of DWDM transmission system. Optical amplifiers can be used in different hybrid configurations to enhance the performance of the optical link and minimize the limitations of existing amplifiers.

scholarly journals Cascaded optical communication systems with in-line semiconductor optical amplifiers

1997 ◽  
Vol 15 (6) ◽  
pp. 962-967 ◽  
Author(s):  
M. Settembre ◽  
F. Matera ◽  
V. Hagele ◽  
N. Gabitov ◽  
A.W. Mattheus ◽  
...  
Keyword(s):  
Optical Communication ◽  
Communication Systems ◽  
Optical Amplifiers ◽  
Semiconductor Optical Amplifiers ◽  
Optical Communication Systems

DISTRIBUTED AMPLIFIER FOR FIBER-OPTIC COMMUNICATION SYSTEMS

2003 ◽  
Vol 13 (01) ◽  
pp. 111-139 ◽  
Author(s):  
H. SHIGEMATSU ◽  
M. SATO ◽  
M. TAKECHI ◽  
T. TAKAHASHI ◽  
T. HIROSE
Keyword(s):  
Communication Systems ◽  
Fiber Optic ◽  
Data Format ◽  
Distributed Amplifiers ◽  
Distributed Amplifier ◽  
Lumped Element ◽  
Broadband Amplifier ◽  
Fiber Optic Communication ◽  
High Bit Rate ◽  
Optic Communication

We have developed distributed amplifiers for high bit-rate fiber-optic communication systems. We have designed a LiNbO 3 modulator driver using 0.15-μm double-doped AlGaAs/InGaAs/AlGaAs pseudomorphic HEMTs. We obtained a 15-dB gain and 54-GHz bandwidth with GCPW lines, and a fairly clear 6-Vp-p output at 40 Gb/s. We also developed preamplifiers for both NRZ and NRZ applications. Our preamplifier for the NRZ-data format has a 52-dBΩ gain and a 49-GHz bandwidth. It consists of a lumped element circuit and a distributed amplifier with InP-based HEMTS. We fabricated a module that consisted of the preamplifier connected to a photodiode, and confirmed a clear NRZ-output waveform at 40-Gb/s. The preamplifier with 0.15-μm double-doped AlGaAs/lnGaAs/AlGaAs pseudomorphic HEMTs for the RZ-data format has an 11-dB gain and a 57-GHz bandwidth. We also developed a PIN/preamp module that has a 44-dBΩ gain and a 45-GHz bandwidth. The module showed a superior phase characteristic and produced a clear RZ eye-pattern. Furthermore, we fabricated an ultra-broadband amplifier for over-40-Gb/s applications. We obtained a 9-dB gain and 70-GHz bandwidth. These results demonstrate that a distributed amplifier is the best candidate for over-40-Gb/s fiber optic communication systems.manuscript.

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