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Iman Esmaili Paeen Afrakoti

Iman Esmaili Paeen Afrakoti

Academic rank: Associate Professor
ORCID:
Education: PhD.
ScopusId:
HIndex:
Faculty: Faculty of Technology and Engineering
Address: Engineering & Technology Department, University of Mazandaran, Pasdaran Street, Babolsar, Iran
Phone: 01135305134

Research

Title
Switching Characteristics of SOA-Assisted All-Optical Sagnac Interferometer Switch for picosecond Pulses
Type
JournalPaper
Keywords
All-optical Sagnac interferometer switches (AOSIS), picosecond pulses, nonlinear effects, semiconductor optical amplifier
Year
2016
Journal Journal of Engineering and Applied Sciences
DOI
Researchers Vahdat Nazerian ، Alireza Taghavi Nasrabadi ، Iman Esmaili Paeen Afrakoti

Abstract

In this study, switching mechanism in all-optical Sagnac interferometer using semiconductor optical amplifier (SOA) is studied numerically. The switching characteristics of this scheme are investigated for picosecond input pulses. SOA all non-linear gain compression effects are considered altogether simultaneously in all-optical Sagnac interferometer switch (AOSIS). The effect of structural and input pulse parameters on the AOSIS operation are identified and analyzed. Simulation results show that some key parameters such as SOA unsaturated gain, control pulse energy and width, SOA length and loop asymmetry of this scheme should be selected (or designed) so that the best operating conditions for switching is satisfied. It was shown that control pulse characteristics have the most effect on switching operation. It was shown that effects of picosecond nonlinearities of SOA are very important on switching characteristics. Furthermore, use of picosecond input pulses caused to the improving switching windows shape and the increasing bandwidth which be useful for broadband applications.