Abstract
External modulation is preferred over direct modulation. Some important reasons are reviewed in this paper. The performance of electro-optic modulator (external modulator) is reviewed for visible-light communication over direct modulation. Here, operating wavelength range is 400–700 nm and voltage-length product (VπL) is 0.8 V cm. Calculated insertion loss is very low compared to other available devices and the extinction ratio is very high.
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Acknowledgements
This work was supported by Visvesvaraya Young Faculty Research Fellowship, MeitY, Govt. of India.
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Devi, P., Maddila, R.K. (2020). External Modulation Using MZM for Visible Wavelengths. In: Janyani, V., Singh, G., Tiwari, M., d’Alessandro, A. (eds) Optical and Wireless Technologies . Lecture Notes in Electrical Engineering, vol 546. Springer, Singapore. https://doi.org/10.1007/978-981-13-6159-3_5
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DOI: https://doi.org/10.1007/978-981-13-6159-3_5
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