Abstract
High-speed data transmission with high modulation efficiency is the essential condition for a high-performance modulator. The phase shifter plays a significant role in determining modulator performance. In this paper, a vertical PINI junction phase shifter is proposed to attain high modulation efficiency. The optical group index is matched to the RF effective index to have a strong coupling of optical and RF mode for high-speed operation. The circuit-level analysis is performed on the optimised phase shifter imported in a silicon Mach–Zehnder modulator. At 60Gbps, a maximum extinction ratio of 10.5 dB with a bit error rate of 5.45 × 10–6 is obtained at VπL of 1.25 V cm for the phase shifter length of 2.5 mm. The energy per bit transmission for the proposed transmission is calculated to be 4pJ/bit. The proposed designs demonstrated to support high data rate transmission for commercial applications. The proposed device can also find other applications such as optical switches, delay lines, and free space optics.
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Jesuwanth Sugesh, R.G., Sivasubramanian, A. (2022). Design and Analysis of a Vertical PINI Junction Phase Shifter in Silicon Mach–Zehnder Modulator. In: Sivasubramanian, A., Shastry, P.N., Hong, P.C. (eds) Futuristic Communication and Network Technologies. VICFCNT 2020. Lecture Notes in Electrical Engineering, vol 792. Springer, Singapore. https://doi.org/10.1007/978-981-16-4625-6_103
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DOI: https://doi.org/10.1007/978-981-16-4625-6_103
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