Semiconductor optical amplifier (SOA)-assisted Sagnac switch for designing of all-optical tri-state logic gates |
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| Authors: | Tanay Chattopadhyay Jitendra Nath Roy |
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| Institution: | a Mechanical Operation (Stage-II), Kolaghat Thermal Power Station, WBPDCL, Mecheda, Purbamedinipur, KTPP Sub Post Office, 721137, West Bengal, India
b Department of Physics, National Institute of Technology, Agartala 799055, Jianira, Tripura, India |
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| Abstract: | Tri-state logic  plays a significant role in carry free arithmetical operation. Design of all-optical scheme of three basic tri-state logical operation (NOT, AND, OR) with the help of polarization encoded semiconductor optical amplifier (SOA)-assisted Sagnac interferometric switch has been studied and investigated in this present paper. Numerical simulation is also presented, which verifies the theoretical results. Insertion loss, contrast ratio, extinction ratio, amplitude modulation, bit error rate and signal to noise ratio values have also been analyzed. |
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| Keywords: | Tri-state logic Optical logic Terahertz Optical Asymmetric Demultiplexer (TOAD) Polarization |
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