Design and analysis of digital to analog converter (DAC) using quantum dot semiconductor optical amplifier
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Kousik Mukherjee
Abstract
Digital to analog converter (DAC) based on amplifying action of quantum dot semiconductor optical amplifier is designed and performance is investigated numerically using Matlab. The performance of the DAC is analyzed by calculating resolution or step size (1.001 mW), dynamic range (11.762 dB), relative output (RO), desired relative output (DRO), absolute error (0.15 %) etc. The dynamic range values offer nearly ideal behavior. The effect of amplified spontaneous emission noise is also investigated on dynamic range and absolute error. An error as low as 0.5 % is achieved at operating speed more than 4 Tb/s. Moreover, the design is simple and uses only four QDSOAs.
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Research ethics: Not applicable.
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Informed consent: Not applicable.
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Author contributions: Kousik Mukherjee is the only author.
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Use of Large Language Models, AI and Machine Learning Tools: None declared.
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Conflict of interest The authors state no conflict of interest.
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Research funding: None declared.
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Data availability: Not applicable.
References
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