Abstract
Gain flatness of erbium-doped fiber amplifier (EDFA) is an important aspect to support high speed multimedia applications for smart devices, cloud computing, big data analysis and high definition television (HDTV) as it achieves equal power for all dense wavelength division multiplexing (DWDM) channels. In this paper, we compare 32 and 64 channels 10 Gbps DWDM system using hybrid EDFA+ Ytterbium-doped silica fiber amplifier (YDFA) in C + L band for 0.4, 0.8 and 1.6 nm wavelength spacing along with FBG for gain flattening. The system performance has been analyzed in terms of optical signal to noise ratio and spectral gain fluctuation observed from the optical power spectrums. It is observed that YDFA although extends the amplification window of EDFA from 1530 to 1610 nm (C to L band), but gain fluctuates over the operating wavelength range. Gain flatness is enormously improved (5–10 dB) by adding FBG as a gain flattening filter to the hybrid (EDFA+YDFA) amplifier. It is found that as the channel spacing decreases (from 1.6 to 0.4 nm) and the number of channels increases (from 32 to 64), the gain reduces due to inter-channel crosstalk and four wave-mixing effect.
References
1. Abu-Aisheh A, Moslepour S. Pre-amp EDFA ASE noise minimization for optical receiver transmission. Opt Commun. 2010;283:2603–6.10.1016/j.optcom.2010.02.038Search in Google Scholar
2. Ravikanth J, Shah DD, Vijay R, Singh BP, Shevgaonkar RK. Analysis of high power EDFA in saturated regime at λ=1530nm and its performance evaluation in a DWDM system. Microw Opt Technol Lett. 2002;32:64–70.10.1002/mop.10092Search in Google Scholar
3. Ismail MM, Othman MA, Zakaria Z, Misran MH, Said MM, Shah MN. EDFA WDM optical network design system. Elsevier Procedia Eng. 2013;53:294–302.10.1016/j.proeng.2013.02.039Search in Google Scholar
4. Ivanovs G, Bobrovs V, Olonkins S, Gavras P, Lauks G, Parts R, et al. Application of erbium-doped fiber amplifier (EDFA) in wavelength division multiplexing (WDM) transmission systems. Int J Phys Sci. 2014;9:91–101.Search in Google Scholar
5. Liaw SK, Dou L, Xu A, Huang YS. Optimally gain-flattened and dispersion-managed C + L-band hybrid amplifier using a single-wavelength pump laser. Opt Commun. 2009;282:4087–90.10.1016/j.optcom.2009.06.075Search in Google Scholar
6. Chestnut DA, Taylor JR. Gain-flattened fiber Raman amplifiers with nonlinearity-broadened pumps. Opt Lett. 2003;28:2294–6.10.1364/OL.28.002294Search in Google Scholar PubMed
7. Dung JC, Chi S, Wen S. Gain flattening of erbium-doped fibre amplifier using fibre Bragg gratings. Electron Lett. 1998;34:555–6.10.1049/el:19980446Search in Google Scholar
8. Choi HB, Oh JM, Lee D, Ahn SJ, Park BS, Lee SB. Simple and efficient L-band erbium-doped fiber amplifiers for WDM networks. Opt Commun. 2002;213:63–6.10.1016/S0030-4018(02)02076-XSearch in Google Scholar
9. Masuda H, Shingo K. Wide-band and gain-flattened hybrid fiber amplifier consisting of an EDFA and a multi wavelength pumped Raman amplifier. IEEE Photonics Technol Lett. 1999;11:647–9.10.1109/68.766772Search in Google Scholar
10. Yeh CH, Huang TT, Lin MC, Chow CW, Chi S. Simultaneously gain-flattened and gain-clamped erbium fiber amplifier. Laser Phys. 2009;19:1246–51.10.1134/S1054660X09060115Search in Google Scholar
11. Kim HS, Yun SH, Kim HK, Park N, Kim BY. Actively gain-flattened erbium-doped fiber amplifier over 35nm by using all-fiber acousto-optic tunable filters. IEEE Photonics Technol Lett. 1998;10:790–2.10.1109/68.681485Search in Google Scholar
12. Mahran O. Gain and noise figure enhancement of Er3+ /Yb3+ co-doped fiber/Raman hybrid amplifier. Opt Mater. 2016;52:100–6.10.1016/j.optmat.2015.12.018Search in Google Scholar
13. Wang Y, Ma C, Li D, Zhang D. Formulized analytical technique for gain characteristics of phosphate glass Er3+ /Yb3+ codoped waveguide amplifiers. Opt Appl. 2008;38:329–39.Search in Google Scholar
14. Mynbeav DH, Scheiner LL. Fiber optic communications technology, 4th ed. Pearson Education, 2004:546–7.Search in Google Scholar
15. Husein AH, El-Nahal FI. Optimizing the EDFA gain for WDM lightwave system with temperature dependency. Optik. 2012;123:586–9.10.1016/j.ijleo.2011.05.026Search in Google Scholar
16. Berkdemir C, Özsoy S. Numerical analysis of the signal gain and noise figure of Yb3+-sensitized Er3+-doped fiber amplifiers at different pumping power configurations. Opt Mater. 2008;31:229–32.10.1016/j.optmat.2008.03.016Search in Google Scholar
17. Singh S, Kaler RS. Simulation of DWDM signals using optimum span scheme with cascaded optimized semiconductor optical amplifiers. Optik. 2007;118:74–82.10.1016/j.ijleo.2006.02.002Search in Google Scholar
18. Lee NK, Kwon HW, Song JW. Gain flattened and improved EDFA using microbending long-period fibre gratings. Electron Lett. 2002;38:1324–5.10.1049/el:20020915Search in Google Scholar
19. Singh S, Kaler RS. Gain flattening approach to physical EDFA for 16 × 40 Gb/s NRZDPSK WDM optical communication systems. Fiber Integr Opt. 2006;25:363–74.10.1080/01468030600817092Search in Google Scholar
20. Sharma SR, Sood T. Gain flattening of EDFA with hybrid EDFA/Raman amplifier with reduced channel spacing. Int J Eng Dev Res. 2015;3:1–7.10.1109/SPIN.2016.7566700Search in Google Scholar
21. Liang TC, Hsu S. The L-band EDFA of high clamped gain and low noise figure implemented using fiber Bragg grating and double-pass method. Opt Commun. 2008;281:1134–9.10.1016/j.optcom.2007.11.020Search in Google Scholar
© 2019 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Amplifiers
- Effect of carrier (hole) temperature on performance of optical amplifiers quantum dot structure
- Devices
- 1 × 2 power splitter based on photonics crystals fibers
- Evolution of Adder and Subtractor Circuit Using Si3N4 Microring Resonator
- Fibers
- Different Photonic Crystal Fibers Configurations with the Key Solutions for the Optimization of Data Rates Transmission
- Networks
- Design and implementation of OLT switching function in 40/10G TDM-PON experimental system
- A parallel cross-connection recovery scheme for dual link failure in elastic optical networks
- A Brief Review on the Methods that Improve Optical Burst Switching Network Performance
- MBO-Based Bandwidth Allocation and Traffic Coloring Optimization in PON
- HMM-Based Secure Framework for Optical Fog Devices in the Optical Fog/Cloud Network
- Attack-Aware Dynamic Upstream Bandwidth Assignment Scheme for Passive Optical Network
- Systems
- 2 × 10 Gbit/s–10 GHz Radio over Free Space Optics Transmission System Incorporating Mode Division Multiplexing of Hermite Gaussian Modes
- Impact of Rayleigh-Distributed PAPR on the Performance of a Pre-Clipped DCO-OFDM System
- Suitability of FBG for Gain Flatness of 64 × 10 Gbps DWDM System Using Hybrid (EDFA+YDFA) Optical Amplifier in C + L Band up to 50 GHz (0.4 nm) Channel Spacing
- BER Performance Analysis of an Orthogonal FDM Free Space Optical Communication System with Homodyne Optical Receiver over Turbulent Atmospheric Channel
- Theory
- Numerical Analysis of Soliton Propagation in a Tapered Waveguide
- New Optical Codes Based on Construction of Parity Check Matrix of LDPC Codes
- Performance Analysis of 20 Gbit/s–40 GHz MDM-Ro-FSO Link Incorporating DPSK Modulation Scheme
Articles in the same Issue
- Frontmatter
- Amplifiers
- Effect of carrier (hole) temperature on performance of optical amplifiers quantum dot structure
- Devices
- 1 × 2 power splitter based on photonics crystals fibers
- Evolution of Adder and Subtractor Circuit Using Si3N4 Microring Resonator
- Fibers
- Different Photonic Crystal Fibers Configurations with the Key Solutions for the Optimization of Data Rates Transmission
- Networks
- Design and implementation of OLT switching function in 40/10G TDM-PON experimental system
- A parallel cross-connection recovery scheme for dual link failure in elastic optical networks
- A Brief Review on the Methods that Improve Optical Burst Switching Network Performance
- MBO-Based Bandwidth Allocation and Traffic Coloring Optimization in PON
- HMM-Based Secure Framework for Optical Fog Devices in the Optical Fog/Cloud Network
- Attack-Aware Dynamic Upstream Bandwidth Assignment Scheme for Passive Optical Network
- Systems
- 2 × 10 Gbit/s–10 GHz Radio over Free Space Optics Transmission System Incorporating Mode Division Multiplexing of Hermite Gaussian Modes
- Impact of Rayleigh-Distributed PAPR on the Performance of a Pre-Clipped DCO-OFDM System
- Suitability of FBG for Gain Flatness of 64 × 10 Gbps DWDM System Using Hybrid (EDFA+YDFA) Optical Amplifier in C + L Band up to 50 GHz (0.4 nm) Channel Spacing
- BER Performance Analysis of an Orthogonal FDM Free Space Optical Communication System with Homodyne Optical Receiver over Turbulent Atmospheric Channel
- Theory
- Numerical Analysis of Soliton Propagation in a Tapered Waveguide
- New Optical Codes Based on Construction of Parity Check Matrix of LDPC Codes
- Performance Analysis of 20 Gbit/s–40 GHz MDM-Ro-FSO Link Incorporating DPSK Modulation Scheme