Accurate modelling and simulation of silicon optical modulators in QPSK

Ching Eng Png; Min Jie Sun; Soon Thor Lim; Kensuke Ogawa

doi:10.1117/12.2075293

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27 February 2015 Accurate modelling and simulation of silicon optical modulators in QPSK

Ching Eng Png, Min Jie Sun, Soon Thor Lim, Kensuke Ogawa

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Proceedings Volume 9367, Silicon Photonics X; 93670F (2015) https://doi.org/10.1117/12.2075293
Event: SPIE OPTO, 2015, San Francisco, California, United States

Abstract

Modulation format is a key determinant to the performance of an optical communication network. In this work, we study a silicon phase shifter arranged around rib waveguide topologies and explore its potential to be applied in quadraturephase- shift-keying (QPSK) optical modulators. Optical QPSK is implemented with four silicon phase shifters embedded in a nested Mach-Zehnder waveguide. Modulated QPSK signal is simulated by calculating the interference between light beams pass through each phase shifter. The constellation diagram of modulated QPSK signal is calculated after coherent demodulation.

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Ching Eng Png, Min Jie Sun, Soon Thor Lim, and Kensuke Ogawa "Accurate modelling and simulation of silicon optical modulators in QPSK", Proc. SPIE 9367, Silicon Photonics X, 93670F (27 February 2015); https://doi.org/10.1117/12.2075293

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