Figure 2 - uploaded by Rajan Miglani
Content may be subject to copyright.
Block diagram of EDFA amplifier. Demerit of EDFA is different gain for different wavelength due to doping concentrate and EYCDF suppresses concentric quenching affect results in higher gain with flatness under pump power 4 . Different applications for the EDFA amplifier are shown in Figure 3.
Source publication
The optical fiber communication gains wide attraction in present time. With this communication technique, information can be sent with high data rates and low cost equipment. As there are various advantages of optical amplifier communication but its performance reduces by light dispersion effects. At the receiver end we use various types of optical...
Context in source publication
Similar publications
This study investigates the insulation performance of the new environmental friendly insulation gas C 6 F 12 O mixed with N 2 and CO 2 under the AC frequency voltage under 0.10–0.30 MPa. Firstly, the mixing ratio of C 6 F 12 O in the mixed gas is discussed by the gas phase state equation. The breakdown voltage of C 6 F 12 O gas mixtures under quasi...
The synthesis of a four-point invariant to the viewing angle geometric model of surface-distributed object is considered in the article. The previously proposed method for synthesizing invariant geometric models assumes that uncorrelated normal random processes with equal disper-sion are supplied to emitters and configuration of the model is a squa...
Citations
... As a device, an optical amplifier directly amplifies the light signal without pre-converting it into electrical form. The working principle of optical amplifiers is the process of stimulated emission where the photon of light interacts with an atomic electron, resulting in the amplification of photon's energy [3]. The optical amplifiers are broadly classified into two categories, namely the optical fiber amplifiers (OFA) and the semiconductor optical amplifier (SOA). ...
t In the present scenario of growing demand for
high data rate, the need for free-space optical communi�cation (FSOC) system around us has become an essential
feature of communication systems. FSOC ofers seamless
communication with much higher data rate possessing
advantages of both the optical fber communication and
wireless communication. The study of diferent mitigation
techniques presently in use is important. One such method
involves mitigation of attenuations by the use optical ampli�fers of diferent types. Efects of diferent optical amplifers
have been studied in this present paper. The moderate tur�bulence scenario is considered with atmospheric and geo�metric losses at data rate of 10 GBPS for a 4-channel wave�length division multiplexing (WDM)-based FSOC system.
The measuring parameters chosen are Q-factor, bit error
rate (BER) and eye diagram. It has been observed that the
erbium-doped fber amplifer (EDFA) and the EDFA–EDFA
hybrid amplifer give consistent good quality communica�tion for long-distance transmission with large and clear eye
opening and acceptable BER of 9.32E−10 and 8.21E−09 at
maximum distance of 4 km, while the Raman amplifer and
semiconductor optical amplifer (SOA) do not approach the
maximum reach and fail to achieve acceptable performance
beyond 2 km and 1 km, respectively
This paper introduces an upgraded Hybrid Optical Amplifier (HOA) design, for wavelength division multiplexed (WDM) systems at L wavelength bands for enhancing received signals. 32-WDM channels in 191.92 – 192.17 THz (1560 – 1562 nm) used for the research. The investigation implemented to improve speed, increase number of users and to deliver all channels integrity in the bandwidth. Two optical amplifier models have used for designing the HOA, of the sort Erbium Doped Fiber Amplifier (EDFA) and RAMAN Fiber Amplifier. Each amplifier apply non-identical process for amplification that leads to different amplification results. By entering the amplified signal from EDFA, which is the first amplifier into the second one, RAMAN amplifier makes the signal to amplify better and to enhance from the recipient side. In this study, we applied the above-mentioned transmitting frequency span separated by 15 GHz of normal telecommunication fiber. In addition, the input utilized transmitting power is -25 dBm, for EDFA alone system, RAMAN alone system, as well as the hybrid amplifier system design, and for 25 Km distance covers a specific zone of Kurdistan. Besides the hybrid amplifier, utilize pumping structures of 980 nm wavelength and 500 mW forward pump-power and in view of rear pumping of the RAMAN amplifier for 1405 to 1517.5 nm pump-wavelength and 100 mW pump power. Since the demand of communication increases, year by year we need to receive signals with high power, and this investigation done to provide a high-received power, compared to the input power spectrum -25 dBm from the receiver side we got a spectrum with power -24 dBm which shows an excellent inhancement of the received signals. The hybrid amplifier production is distinguished as regards maximum gain attained, gain flatness, and the noise figure that amplified. As well, the Optical Signal to Noise Ratio (OSNR) is studied in terms of signal wavelength. The differentiation between the two amplifiers alone used in design products and the designed hybrid EDFA/RAMAN has been done. The designed HOA gave great-enhanced productions; the produced gain from the designed HOA is increased notably. The maximum gain of the Hybrid amplifier reached to 40.086 dB with gain flatness of approximately 1 dB and the complete noise figure is 5.19 dB which showed lowest compared to alone used amplifiers.
This paper introduces an upgraded Hybrid Optical Amplifier (HOA) design, for wavelength division multiplexed (WDM) systems at L wavelength bands for enhancing received signals. 32-WDM channels in 191.92-192.17 THz (1560-1562 nm) used for the research. The investigation implemented to improve speed, increase number of users and to deliver all channels integrity in the bandwidth. Two optical amplifier models have used for designing the HOA, of the sort Erbium Doped Fiber Amplifier (EDFA) and RAMAN Fiber Amplifier. Each amplifier apply non-identical process for amplification that leads to different amplification results. By entering the amplified signal from EDFA, which is the first amplifier into the second one, RAMAN amplifier makes the signal to amplify better and to enhance from the recipient side. In this study, we applied the above-mentioned transmitting frequency span separated by 15 GHz of normal telecommunication fiber. In addition, the input utilized transmitting power is-25 dBm, for EDFA alone system, RAMAN alone system, as well as the hybrid amplifier system design, and for 25 Km distance covers a specific zone of Kurdistan. Besides the hybrid amplifier, utilize pumping structures of 980 nm wavelength and 500 mW forward pump-power and in view of rear pumping of the RAMAN amplifier for 1405 to 1517.5 nm pump-wavelength and 100 mW pump power. Since the demand of communication increases, year by year we need to receive signals with high power, and this investigation done to provide a high-received power, compared to the input power spectrum-25 dBm from the receiver side we got a spectrum with power-24 dBm which shows an excellent inhancement of the received signals. The hybrid amplifier production is distinguished as regards maximum gain attained, gain flatness, and the noise figure that amplified. As well, the Optical Signal to Noise Ratio (OSNR) is studied in terms of signal wavelength. The differentiation between the two amplifiers alone used in design products and the designed hybrid EDFA/RAMAN has been done. The designed HOA gave great-enhanced productions; the produced gain from the designed HOA is increased notably. The maximum gain of the Hybrid amplifier reached to 40.086 dB with gain flatness of approximately 1 dB and the complete noise figure is 5.19 dB which showed lowest compared to alone used amplifiers. Design Engineering ISSN: 0011-9342 | Year 2021 Issue: 7 | Pages-7476-7491 [7477]
