Performance Evaluation of Hybrid Optical Amplifier for Ultra Dense Wavelength Division Multiplexed Optical Network at Narrow Channel Spacing

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Deepak Malik ◽  
Amit Wason
Keyword(s):  
Noise Figure ◽  
Work Capacity ◽  
Optical Amplifier ◽  
Input Power ◽  
Channel Spacing ◽  
Erbium Doped Fiber Amplifier ◽  
Wavelength Division ◽  
Wavelength Division Multiplexed ◽  
Flat Gain ◽  
Hybrid Optical Amplifier

AbstractIn this paper, a competent flat gain hybrid optical amplifier is proposed with an optimum arrangement of erbium doped fiber amplifier (EDFA) and Raman amplifier. Attempts are made to design a hybrid optical amplifier for100 channels, 10 Gbps super dense wavelength division multiplexed (SDWDM) systems at channel spacing of 0.1 nm. Work capacity of the system was compared on the basis of various parameters, viz., noise figure and gain that determined the performance of the system. The gain spectrum of the hybrid optical amplifier depends upon the parameters viz., laser input power, pump power and pump wavelength of the amplifier. It was found that for wavelength range 1,560.38–1,579.59 nm, a flat gain of 4.34 dB is achieved for input power of −10 dB with noise figure variation of 0.818 dB without using any gain flattering scheme. Being simple and cost effective, this hybrid optical amplifier could be recommended for gain flatness characteristics and acceptable noise figure for dense wavelength multiplexed systems.

Hybrid Optical Amplifier for Flat Gain in Super Dense Wavelength Division Multiplexed (SDWDM) System

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Amit Wason ◽  
Deepak Malik
Keyword(s):  
Optical Networks ◽  
Noise Figure ◽  
Work Capacity ◽  
Optical Amplifier ◽  
Input Power ◽  
Gain Spectrum ◽  
Wavelength Division ◽  
Wavelength Division Multiplexed ◽  
Flat Gain ◽  
Hybrid Optical Amplifier

AbstractLarge capacity optical networks require flattened gain spectrum and large gain bandwidth of the optical networks. In order to achieve this large number of hybrid optical amplifiers are designed. Here we proposed a competent flat gain hybrid optical amplifier with an optimum combination of Erbium Doped Fiber Amplifier (EDFA) and Raman amplifier. Attempts are made to design a hybrid optical amplifier for 100 channels, 10 Gbps Super Dense Wavelength Division Multiplexed (SDWDM) systems at different channel spacing of 0.1, 0.2, 0.4 and 0.8 nm. Work capacity of the network was compared on the basis of various parameters viz., gain and noise figure that determined the performance of the system. The gain spectrum of the hybrid optical amplifier depends upon the parameters viz., pump wavelength, pump power and laser input power of the amplifier. Various efforts were conceded out to optimize these parameters. It was found that for wavelength range 1,570.5–1,580.75 nm, a flat gain of 5.36 dB is achieved for input power of −15 dB with noise figure variation of 0.57 dB without using any gain flattering scheme. Being simple and cost effective, this hybrid optical amplifier could be recommended for gain flatness characteristics and acceptable noise figure for super dense wavelength division multiplexed system.

Analysis the flat gain/noise figure using RAMAN-Reflective Semiconductor Hybrid Optical Amplifier in C + L + U triple band for super dense wavelength division multiplexing system

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Chakresh Kumar ◽  
Ghanendra Kumar
Keyword(s):  
Wavelength Division Multiplexing ◽  
Noise Figure ◽  
Optical Amplifier ◽  
Dense Wavelength Division Multiplexing ◽  
Wavelength Division ◽  
Prime Concern ◽  
Flat Gain ◽  
Hybrid Optical Amplifier ◽  
The Impact ◽  
First Time

AbstractNonlinearity, flat gain and noise figure are the prime concern for super dense wavelength division multiplexing (SD-WDM) systems which have been resolved from RAMAN-RSOA hybrid optical amplifier (HOA) for the first time in this paper. Channel capacity is taken up to 400 with data rate of 10 Gbps. Performances are evaluated with respect to C + L + U band for 1520–1680 nm and 1520 to 1640 nm. RSOA is operated at 40–120 mA bias current to attain best rating flat gain of 34.07 dB with variation of 3.5 dB than the others HOAs (RAMAN-EDFA, RAMAN-SOA and EDFA-SOA). Moreover, the impact of EDFA-SOA is not acceptable in terms of noise figure for SD-WDM optical communication system.

scholarly journals A High Flatness Gain Subsisting of Cascaded EDFA-TDFA Hybrid Optical Amplifier For Super Dense Wavelength Division Multiplexing System

2021 ◽  
Author(s):  
Prof.Chakresh kumar ◽  
Ghanendra Kumar
Keyword(s):  
Wavelength Division Multiplexing ◽  
Noise Figure ◽  
Optical Amplifier ◽  
Dense Wavelength Division Multiplexing ◽  
Wavelength Division ◽  
Flat Gain ◽  
Hybrid Optical Amplifier ◽  
Channel Wavelength ◽  
The Impact ◽  
Good Rating

Abstract Flat gain with least noise figure (NF) is the backbone feature of super dense wavelength division multiplexing (SD-WDM) system. It indicates the good amplification in terms of high-quality factor, lowest bit error rate, and good rating output power. But in this paper, we have mainly focused on characteristics of proposed EDFA-TDFA hybrid optical amplifier (HOA) in terms of flat gain and noise figure for C-Band. Evaluation has done for 400 x 2.455 Gb/s SD-WDM system with channel spacing of 0.8 nm. Moreover, effect of proposed HOA also observed with displacement of channel wavelength for evaluating the impact of different set of HOA for analysis the same characteristics.

Performance enhancement of Raman + EYDFA HOA for UD-WDM system applications

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Anurupa Lubana ◽  
Sanmukh Kaur ◽  
Yugnanda Malhotra
Keyword(s):  
Wavelength Division Multiplexing ◽  
Performance Enhancement ◽  
Optical Amplifier ◽  
Q Factor ◽  
Channel Spacing ◽  
Average Gain ◽  
Wavelength Division ◽  
System Parameters ◽  
Gain Variation ◽  
Hybrid Optical Amplifier

AbstractIn this work, we study and analyze the performance of Raman + Erbium-Ytterbium codoped fiber hybrid optical amplifier (HOA) for an ultradense wavelength division multiplexing (UD-WDM) system having 100 channels. The system has been investigated considering initial values of channel spacing and data rate of 0.1 nm (12.5 GHz) and 100 GB/s, respectively. Initially, the two important WDM system parameters—wavelength and channel spacing—have been selected and then optimization of the proposed HOA has been performed in terms of EYDFA length, pump power and Er+ concentration to achieve higher values of average gain, Q-factor and lower gain variation ratio. The optimized configuration of the HOA results in the achievement of higher value of average gain, Q-factor and gain variation ratio of 47 dB, 14 and 0.14, respectively, which confirms its viability for UD-WDM system applications.

Investigation and optimization of EYDFA + Raman + EYDFA hybrid optical amplifier for SD-WDM systems in C+L band

2021 ◽  
pp. 2150006
Author(s):  
Anurupa Lubana ◽  
Sanmukh Kaur
Keyword(s):  
Wavelength Division Multiplexing ◽  
Signal To Noise Ratio ◽  
Fiber Amplifier ◽  
Optical Amplifier ◽  
Optical Signal ◽  
Channel Spacing ◽  
Channel System ◽  
Wavelength Division ◽  
Gain Variation ◽  
Hybrid Optical Amplifier

In this paper, we present a novel erbium–ytterbium doped fiber amplifier (EYDFA) + Raman + EYDFA hybrid optical amplifier (HOA) for a super-dense wavelength division multiplexing (SD-WDM) system application. The performance of the 100-channel system has been investigated for an overall data rate and channel spacing of 100[Formula: see text]Gb/s and 0.4[Formula: see text]nm, respectively, over a wavelength span of 1550–1589.9[Formula: see text]nm. HOA has been optimized for Raman length, EYDFA lengths, pump powers and Er[Formula: see text] concentrations to achieve high average gain and low gain variation ratio of 40.41[Formula: see text]dB and 0.40[Formula: see text]respectively. The optimized configuration of the proposed HOA has been compared with EYDFA + Raman and Raman + EYDFA HOA configurations. The achieved high and flat gain with an acceptable output optical signal to noise ratio (OSNR) in case of EYDFA + Raman + EYDFA HOA; makes it an optimum choice for SD-WDM systems.

Flattened gain S + C + L Band RAMAN–Thulium-Doped Tellurite Fiber Amplifier Hybrid Optical Amplifier for Super Dense Wavelength Division Multiplexing System

2019 ◽  
Vol 40 (3) ◽  
pp. 167-170 ◽  
Author(s):  
Chakresh Kumar ◽  
Rakesh Goyal
Keyword(s):  
Wavelength Division Multiplexing ◽  
Noise Figure ◽  
Power Level ◽  
Fiber Amplifier ◽  
Optical Amplifier ◽  
Dense Wavelength Division Multiplexing ◽  
Wavelength Division ◽  
Proposed Model ◽  
L Band ◽  
Hybrid Optical Amplifier

Abstract In this paper we have examined the performances of 180×10 Gbps super dense wavelength division multiplexing (SD-WDM) system using the RAMAN–thulium-doped tellurite fiber amplifier (TDTFA) hybrid optical amplifier (HOA) with the channel spacing of 50 GHz in S+C+L band. Accepted rating flattened gain of 39.21 dB with the noise figure less than 5 dB is archived with the dual-pumping ( power level of 500 mW at 980 nm and at 1100 nm for RAMAN optical amplifier and similar, power level of TDTF amplifier is set to 500 mW and 350 mW at 1150 nm) technique. The effect of the proposed hybrid amplifier is evaluated in terms of gain and noise figure without using any coast effective technique. The outcome from the proposed model is also compared here with the existing optical amplifier.

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