Performance Assessment of Hybrid Optical Amplifier for Higher Transmission Efficiency with SD-WDM System
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Performance Assessment of Hybrid Optical Amplifier for Higher Transmission Efficiency with SD‑WDM System Chakresh Kumar1 · Ghanendra Kumar2
© Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract In this paper for the first time, performance of 400 × 40 Gbps super dense communication system has been evaluated for triple binary (TB) modulation formats (NRZ, RZ and Manchester) in terms of output power, bit error rate (BER), quality factor, receiver sensitivity and different channel spacing respectively. Further, it has observed that TB-NRZ modulation format shows the remarkable outcome in the presence of RAMAN-EDFA-RAMAN hybrid optical amplifier. But performances recorded from TB-RZ and TB-M modulation format are shown the worst response in term of power penalty for super dense system. Furthermore, it has also declared that channel spacing of 100 GHz is shown the best compatibility in terms of least variation in bandwidth. Keywords SD-WDM · BER · Quality factor · RAMAN · EDFA · Hybrid optical amplifier
1 Introduction The demands of higher transmission capacity for super dense wavelength division multiplexing (SD-WDM) system can only be possible using hybrid optical amplifier (HOA) with effective bandwidth cost [1–3]. Higher capacity transmission limits the performance of transmission signals in terms of optical signal to noise ratio (OSNR) and fiber nonlinearity etc. All these challenges issues, motivated the researcher to enhance the performance of super dense optical communication with some special modulation techniques such as non-return-to zero (NRZ), return-to-zero (RZ), carrier suppressed return-to-zero (CSRZ) and differential quadrature phase shift keying (DQPSK) [4–9] respectively. Triple binary signals using HOA are the right transmission choice to control dispersion and bandwidth for attaining best rating outcome in terms of output power and bit error rate (BER) [10, 11]. Triple binary modulator is also called phase shape modulator for supporting high spectral efficiency for SD-WDM system [12, 13]. But, results of this modulator * Chakresh Kumar [email protected] * Ghanendra Kumar 1
University School of Information, Communication and Technology, Guru Gobind Singh Indraprastha University, New Delhi 110078, India
2
Department of Electronics and Communication Engineering, National Institute of Technology, Delhi 110040, India
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C. Kumar, G. Kumar
has shown in narrow optical signal compared to conventional ON–OFF keyed (OOK) which helped out to disperse the effect of fiber nonlinearity, dispersion and crosstalk through super dense optical communication [14, 15].Major research area for triple binary system has utilized non return-to-zero (NRZ) pulse shape to maintain the narrow shape for proper utilizing the allotted bandwidth spectrum [16].But effect of return-to-zero (RZ) has also shown the remarkable performance in the context of fiber nonlinearity [17, 18]. High capacity transmission signals are the prime concern for today’s revolutionary user’s re
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