TY  - JOUR
T1  - Switching Characteristics of SOA-Assisted All-Optical
Sagnac Interferometer Switch for Picosecond Pulses
AU - Nazerian, Vahdat AU - Nasrabadi, Alireza Taghavi AU - Afrakoti, Iman Esmaili Pain 
JO  - Journal of Engineering and Applied Sciences
VL  - 11
IS  - 4
SP  - 751
EP  - 759
PY  - 2016
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2016.751.759
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2016.751.759
KW  - All-Optical Sagnac Interferometer Switches (AOSIS)
KW  -picosecond pulses
KW  -nonlinear effects
KW  -semiconductor optical amplifier
KW  -satisfied
AB  - 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.
ER  -