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In this paper, performance evaluation of different transmitters enabling colorless operation for WDM— PONs applications is carried out. Injected Locked Fabry Perot Laser Diode (IL-FPLD) and Reflective Semiconductor Optical Amplifier (RSOA) in external seeding and wavelength reuse scheme are modeled in VPITransmissionMaker® simulation platform. Upstream transmissions are performed at 1.25 Gb/s with...
Future terabit optical communication systems will rely on higher order Quadrature Amplitude Modulation (QAM) formats to improve the spectral efficiency (SE). However, these formats exhibit a higher sensitivity to linear as well as non-linear impairments throughout the optical link [1, 2]. These impairments may be time-varying in nature arising from mechanical disturbance in optical fibers, temperature...
The performance of ultra-short pulse propagation through single-mode fiber (SMF) is degraded due to linear and nonlinear phenomena like fiber loss, group velocity dispersion (GVD), and self-phase modulation (SPM). Since diffraction phenomena and transmittance functions of the optical devices affect the magnitude and phase of a propagated ultra-short pulse, it is necessary to build-up an approach in...
In optical communications systems, the optical combs spectrum has been used to generate multiple carriers from a continuous wave laser or other optical source. Due to different parameters to find the best spectrum, one alternative is necessary to define. This paper proposes three fuzzy entropy measures by adequacy and non-adequacy in order to evaluate the optical combs spectrum performance. The goal...
This paper refers to a research about 5-channel wavelength division multiplexed passive optical network (WDM-PON) based on optical frequency combs generation (OFCG), using Mach-Zehnder modulator (MZM). The simulations were applied in standard single-mode fiber (SSMF) like an alternative for next generation-PON (NG-PON). OFCG using MZM has been widely studied due to the fact that the spectral spacing...
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