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Proceedings Paper

Accurate modelling and simulation of silicon optical modulators in QPSK
Author(s): Ching Eng Png; Min Jie Sun; Soon Thor Lim; Kensuke Ogawa
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Paper 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.

Paper Details

Date Published: 27 February 2015
PDF: 6 pages
Proc. SPIE 9367, Silicon Photonics X, 93670F (27 February 2015); doi: 10.1117/12.2075293
Show Author Affiliations
Ching Eng Png, A*STAR Institute of High Performance Computing (Singapore)
Optic2Connect Pte Ltd. (Singapore)
Min Jie Sun, Optic2Connect Pte Ltd. (Singapore)
Soon Thor Lim, A*STAR Institute of High Performance Computing (Singapore)
Kensuke Ogawa, Fujikura Ltd. (Japan)

Published in SPIE Proceedings Vol. 9367:
Silicon Photonics X
Graham T. Reed; Michael R. Watts, Editor(s)

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