Comparison of pulse propagation and gain saturation characteristics among different input pulse shapes in semiconductor optical amplifiers
MetadataShow full item record
This paper presents the pulse propagation and gain saturation characteristics for different input optical pulse shapes with different energy levels in semiconductor optical amplifiers (SOAs). A finite-difference beam propagation method (FD-BPM) is used to solve the modified nonlinear Schrödinger equation (MNLSE) for the simulation of nonlinear optical pulse propagation and gain saturation characteristics in the SOAs. In this MNLSE, the gain spectrum dynamics, gain saturation are taken into account those are depend on the carrier depletion, carrier heating, spectral hole-burning, group velocity dispersion, self-phase modulation and two photon absorption. From this simulation, we obtained the output waveforms and spectra for different input pulse shapes considering different input energy levels. It has shown that the output pulse shape has changed due to the variation of input parameters, such as input pulse shape, input pulse width, and input pulse energy levels. It also shown clearly that the peak position of the output waveforms are shifted toward the leading edge which is due to the gain saturation of the SOA. We also compared the gain saturation characteristics in the SOA for different input pulse shapes.
Showing items related by title, author, creator and subject.
Modelling and analysis of semiconductor optical amplifiers for high-speed communication systems using finite-difference beam propagation methodBarua, Suchi (2014)Semiconductor optical amplifiers (SOAs) have attracted lots of interests because of their application potential in the field of optical communications. The output pulse of SOA can be changed due to the variation of input ...
Barua, S.; Das, Narottam; Nordholm, Sven; Razaghi, M. (2014)This paper presents the gain saturation characteristics for different input pulse shapes in semiconductor optical amplifiers (SOAs). Finite-difference beam propagation method (FD-BPM) is used for simulation and compared ...
Das, Narottam; Razaghi, M.; Hosseini, S. (2012)This paper presents propagation characteristics of short optical pulses and four-wave mixing (FWM) in semiconductor optical amplifiers (SOAs) for high conversion efficiency. For the simulation of pulse propagation in SOA, ...