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.

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.

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.

OPTICAL AMPLIFIER WITH FLAT-GAIN AND WIDEBAND OPERATION UTILIZING HIGHLY CONCENTRATED ERBIUM-DOPED FIBERS

2012 ◽  
Vol 21 (01) ◽  
pp. 1250005
Author(s):  
B. A. HAMIDA ◽  
X. S. CHENG ◽  
A. W. NAJI ◽  
H. AHMAD ◽  
W. AL-KHATEEB ◽  
...  
Keyword(s):  
Optical Networks ◽  
Wavelength Division Multiplexing ◽  
Noise Figure ◽  
Wavelength Region ◽  
Optical Amplifier ◽  
Gain Spectrum ◽  
Double Pass ◽  
Erbium Doped Fiber Amplifier ◽  
Erbium Doped ◽  
Flat Gain

In this paper, we proposed a flat-gain and wide-band erbium doped fiber amplifier (EDFA) using two chirped fiber Bragg grating (CFBG) in serial configuration for double-pass operation. The amplifier consists of two sections of Erbium-doped fiber (EDF) operating in C-band and L-band respectively. A CFBG is used in each section to reflect the amplified signal back to the active area so that the overall gain spectrum can be enhanced and flattened. It is also observed that the gain of the amplifier produces a relatively higher gain with the Bismuth-based EDF (Bi-EDF) in the first stage compared to that of silica-based EDF (Si-EDF), especially in a longer wavelength region. The small signal gain of more than 19 dB is obtained within a wavelength region from 1545 to 1605 nm by the use of Bi-EDF with a small noise figure penalty. With a Si-EDF, the flat gain spectrum is observed within a wavelength region ranging from 1535 nm to 1605 nm with a gain variation of less than 2 dB at input signal of 0 dBm. This shows that the proposed serial double-pass amplifier may find its broad applications in wavelength division multiplexing long-haul systems as well as local optical networks.

Performance analysis of hybrid optical amplifiers for multichannel wavelength division multiplexed (WDM) optical networks

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Deepak Malik ◽  
Amit Wason
Keyword(s):  
Optical Networks ◽  
Optical Amplifier ◽  
Wdm Optical Networks ◽  
Long Distance ◽  
Eye Diagram ◽  
Wavelength Division ◽  
Wavelength Division Multiplexed ◽  
High Data ◽  
Data Rates ◽  
Hybrid Optical Amplifier

AbstractHybrid Optical Amplifier (HOA) has made a significant change in Wavelength Division Multiplexed (WDM) optical networks. We have proposed diverse hybrid optical amplifier configurations for the better performance of WDM optical networks. These configurations are SOA-EDFA, EDFA-EDFA and EDFA-Raman amplifier for 24 channels WDM optical networks at 10 Gbps with channel spacing of 0.8 nm. The performance of the systems is evaluated on the behalf of different parameters such as, quality factor, eye diagram, bit error rate and output power. The efforts are made to optimize these parameters. From the results, it is assessed that EDFA-Raman configuration gives superior results as compared to EDFA-EDFA configuration and SOA-EDFA hybrid optical amplifier configuration for long distance. Further it is also observed that EDFA-Raman hybrid optical amplifier configuration is suitable for high data rates up to 20 Gbps.

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.

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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