Simulative Performance Analysis of All Optical Universal Logic TAND Gate Using Reflective Semiconductor Optical Amplifie
Reflective Semiconductor Optical Amplifier (RSOA) is a suitable gain medium due to its double pass characteristics compared to ordinary semiconductor Optical Amplifier. RSOA-based gain dynamics is utilized to design and analyze the new RSOA-based all opti
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Abstract Reflective Semiconductor Optical Amplifier (RSOA) is a suitable gain medium due to its double pass characteristics compared to ordinary semiconductor Optical Amplifier. RSOA-based gain dynamics is utilized to design and analyze the new RSOA-based all optical logic TAND gate using Soliton pulses for the first time. The proposed logic TAND is a universal gate and using this gate NOT, OR, and AND gates are also designed. Keywords Universal logic · Soliton · RSOA · Q value · Gain saturation
1 Introduction Reflective Semiconductor Optical Amplifiers (RSOAs) are important nonlinear devices for the design of all optical broadband communication applications as it can simultaneously accept and modulate signals in the downstream while demodulating them with end-user information in the upstream communication link [1]. Recent proposals of RSOA-based colorless transmitters have been demonstrated for Passive Optical Network (PON) applications [1–3]. RSOA is an effective gain media to design all optical logic processors [4, 5], and has higher gain at lower injection current compared to ordinary Semiconductor Optical Amplifiers (SOAs) due to its double pass gain and is shown in the Fig. 1. TAND gate is a universal gate with only one high output being proposed using Tera Hertz Optical Asymmetric Demultiplexer (TOAD) which is proposed in [6]. Therefore, any basic gates or complex circuits can K. Maji · K. Mukherjee (B) Department of Physics, B.B. College, Asansol 713303, India e-mail: [email protected] K. Maji e-mail: [email protected] K. Maji · M. K. Mandal Department of Physics, National Institute of Technology, Durgapur 713209, India e-mail: [email protected] © Springer Nature Singapore Pte Ltd. 2021 D. Bhattacharjee et al. (eds.), Proceedings of International Conference on Frontiers in Computing and Systems, Advances in Intelligent Systems and Computing 1255, https://doi.org/10.1007/978-981-15-7834-2_9
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96 Fig. 1 RSOA-based TAND gate
K. Maji et al. Beam splitter
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be designed using this TAND gate. In this communication, a method of implementation of a new TAND gate using RSOA is proposed and analyzed for the first time as far as our knowledge goes. Using this TAND gate, three basic gates NOT, AND, and OR are designed which establish the fact that TAND is an universal gate. In Sect. 2.1, the basic principle of working of RSOA-based TAND gate is described. In Sects. 2.2–2.4, the designs of NOT, OR, and AND gates are described, which show that TAND gate is a universal gate. Section 3 shows the simulated results of operation of the proposed logic gates using MATLAB. Section 4 shows a comparison with other related work and gives a clear indication of improvement over those already established works. Section 5 concludes the paper.
2 Working Principle of the TAND Gate The cross-gain modulation in RSOA is the basic mechanism behind the working of the proposed logic gate, which results in complementary or inverted output at probe wavelength due to pump modulation (Fig. 1). When pump or control
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