Error detection using electro-optical methods has evolved as a new research domain in the recent years. They have proved to be more reliable than the conventional electronic methods. The presented paper describes the design and analysis of an electro-optical convolutional code encoder. The convolutional code has been long in use for the efficient detection of errors. The design has been proposed using Lithium Niobate based Mach-Zehnder Interferometer. The code bits are generated by modulo-2 addition of the input data in different patterns by the use of shift register and XOR gate. The design has successfully been tested using the beam propagation method. The calculated extinction ratio (24.82 dB), insertion loss (0.11 dB) and contrast ratio (23.26 dB) are meeting the desired values for the better performance of the device.
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Electro-Optical Design and Modeling of Convolutional Code Encoder
Semantic Scholar · Engineering · 2019
Abstract
Error detection using electro-optical methods has evolved as a new research domain in the recent years. They have proved to be more reliable than the conventional electronic methods. The presented paper describes the design and analysis of an electro-optical convolutional code encoder. The convolutional code has been long in use for the efficient detection of errors. The design has been proposed using Lithium Niobate based Mach-Zehnder Interferometer. The code bits are generated by modulo-2 addition of the input data in different patterns by the use of shift register and XOR gate. The design has successfully been tested using the beam propagation method. The calculated extinction ratio (24.82 dB), insertion loss (0.11 dB) and contrast ratio (23.26 dB) are meeting the desired values for the better performance of the device.