Application of Optical Solitons in High-Speed and Wavelength-Division-Multiplexed Lightwave Communication Systems

1995 ◽  
Vol 4 (1) ◽  
pp. 41-59 ◽  
Author(s):  
Kai Choong Chan ◽  
Holden Ho Yuen Cheng ◽  
Hai Feng Liu ◽  
Khawaja Aamer Ahmed
Keyword(s):  
Communication Systems ◽  
High Speed ◽  
Optical Solitons ◽  
Wavelength Division ◽  
Wavelength Division Multiplexed

scholarly journals EDFA AND EYCDFA POWER BOOSTER FOR SECURED, HIGH SPEED AND MULTIPLE WAVELENGTH SERVICES IN OPTICAL COMMUNICATION SYSTEMS USING WDM AND QUAD-SINGLE FORWARD AND TRI BACKWARD PUMPING TECHNIQUE

2021 ◽  
Vol 5 (12) ◽  
Author(s):  
S. Semmalar ◽  
S. Malarkkan
Keyword(s):  
Wavelength Division Multiplexing ◽  
Optical Communication ◽  
Communication Systems ◽  
High Speed ◽  
Optical Power ◽  
Fiber Amplifier ◽  
Signal Power ◽  
Erbium Doped Fiber Amplifier ◽  
Output Optical Power ◽  
Wavelength Division

Proposed the EDFA and EYCDFA power booster (Erbium Doped Fiber Amplifier- Erbium ytterbium co doped fiber amplifier) with quad pumping for high speed and multi wavelength services in an optical communication. The proposed EDFA and EYCDFA power booster with WDM(Wavelength division multiplexing) simulated by dual forward and Backward pumping, Dual-backward pumping, Tri-single forward and dual backward pumping and Quadsingle forward and tri-backward pumping with respect to Pump power and fiber Length. The parameters Input Optical power, Output Optical power, Forward Signal power, Backward Signal power measured and determined the speed of transmission in all types of pumping methods. From that the proposed EDFA- ans EYCDFA power booster with WDM quad pumping is the best suitable for secured high speed optical telecommunication systems. The results shown in Quad pumping Output optical power is maximum 25.2dB and optimum spectral forward Signal power is 30.5dBm and very less spectral optical backward signal power of -25.4dBm with Length 5m

scholarly journals Characterization and Application of Solitons in a High Nonlinearity Optical Link with Dense Wavelength Division Multiplexing (DWDM) and Ultra-Dense Wavelength Division Multiplexing (UDWDM) Technics

2021 ◽  
pp. 92-102
Author(s):  
Aristide Mankiti Fati ◽  
Rostand Davy Martialy Loembe Souamy ◽  
Fraidy Ghislain Bouesse ◽  
. Nzonzolo ◽  
André Pasi Bengi Massata ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Wavelength Division Multiplexing ◽  
High Speed ◽  
Optical Solitons ◽  
Dense Wavelength Division Multiplexing ◽  
Eye Diagram ◽  
Wavelength Division ◽  
Optical Time Domain Reflectometer ◽  
Nonlinear Character ◽  
Using Data

The constantly growing needs in terms of speed and bandwidth, especially all services using data has become greedy. Today optical fiber is the medium of choice for many advantages over others channels. although the optical fiber has taken the label of transmission channels, we won’t be able to do without its nonlinear character and dispersions, which are part of the major problems during optical transmission. In this article, we are presenting the use of optical solitons in the fiber optic link, with a particular way; we have considered two kind of links, the underground one and the overhead one, in the first link, we have applied optical soliton in order to just take into account the optical Kerr effect. And for the overhead link, we can transmit for short distance by using the return to zero modulation’s format and the use of optical Erbium Doped Fiber Amplifiers (EDFA). The solitons which are the impulses, capable of propagating in the nonlinear optical fiber and dispersive without any distortion; to justify our hypothesis, we compare a dense wavelength division multiplexing (DWDM) without soliton and the dense wavelength division multiplexing with solitons; we notice that, the link with soliton is better than the first because the pulse keeps its shape from the source up to the destination, its eye diagram is opened which means there is no much noises. After the simulations in Matlab and optisystem software, we went to Congo telecom, to do our test with the optical time-domain reflectometer (OTDR), for both installations. From that study while transmitting over 100km it is better to use optical solitons with the high speed.

VERY HIGH SPEED OEIC TRANSMITTERS FOR FUTURE OPTICAL TRANSMISSION SYSTEMS AND OPTICAL NETWORKS

1991 ◽  
Vol 02 (01n02) ◽  
pp. 21-44 ◽  
Author(s):  
Y.H. LO ◽  
T.P. LEE
Keyword(s):  
Optical Networks ◽  
High Speed ◽  
Hybrid Approach ◽  
Dominant Factor ◽  
Substrate Thickness ◽  
Wavelength Division ◽  
Wavelength Division Multiplexed ◽  
Bonding Wires ◽  
Wavelength Control ◽  
And Performance

The technology and system applications of high speed OEIC transmitters are discussed in this paper. With only two MOCVD growths and conventional processing techniques, OEIC transmitters made of sophisticated DFB laser diodes and InGaAs/InAlAs MODFETs can be fabricated. A speed of 10 Gbit/s has been demonstrated. Using the same technology, OEIC transmitters for high bit rate time division multiplexed (TDM) and dense wavelength division multiplexed (WDM) systems are designed and fabricated. There is evidence showing that the OEIC transmitter integrated with multiplexers and other critical circuits can offer significant cost reduction and performance improvement compared to hybrid approach. Using a four-channel OEIC WDM transmitter, we demonstrate its capability of precise wavelength control by setting the channel spacing as close as 0.3 nm. Finally, the crosstalk of OEIC is analyzed. Bonding wires are confirmed as the dominant factor for RF crosstalk. To keep the thermal crosstalk within an acceptable level, a proper device spacing to substrate thickness ratio has to be chosen.

DISPERSION-MANAGED SOLITONS IN MULTIPLE CHANNELS

2004 ◽  
Vol 13 (01) ◽  
pp. 81-102 ◽  
Author(s):  
ANJAN BISWAS
Keyword(s):  
Variational Principle ◽  
Optical Solitons ◽  
Multiple Channels ◽  
Dispersion Management ◽  
Wavelength Division ◽  
Wavelength Division Multiplexed

The dynamics of optical solitons, with dispersion management, propagating through a dense wavelength-division-multiplexed system with damping and amplification is studied. The adiabatic parameter dynamics of the solitons in the presence of perturbation terms have been obtained by virtue of the variational principle. In particular, the Gaussian and super-Gaussian pulses have been considered.

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