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Proceedings Paper

Design and characterisation of high-speed monolithic silicon modulators for digital coherent communication
Author(s): Kensuke Ogawa; Kazuhiro Goi; Akira Oka; Yasuhiro Mashiko; Tsung-Yang Liow; Xiaoguang Tu; Guo-Qiang Lo; Dim-Lee Kwong; Soon Thor Lim; Min Jie Sun; Ching Eng Png
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Paper Abstract

Latest computational and experimental studies on high-speed monolithic silicon-based Mach-Zehnder optical modulators are studied in the light of photonic integrated circuits for digital coherent communication at a bit rate as fast as 128 Gb/s per wavelength channel. Lateral PN-junction rib-waveguide phase shifters are elaborated with experimental characteristics of DC phase shifter response in comparison with computational characteristics. High-speed response in refractive-index dynamics including electron and hole transport in the PN junction is simulated to study speed limit of the phase shifters. The performance in quadrature phase-shift keying signal generation is characterized in experimental and computational constellation diagrams. Silicon waveguides for polarization-division multiplexing are designed in common design rules with the rib-waveguide phase shifters. Long-haul transmission in polarization-multiplexed quadrature phase-shift keying in 1000-km single-mode fiber link is confirmed with a monolithic silicon Mach-Zehnder modulator assembled with modulator drivers in a ceramic-based metal package.

Paper Details

Date Published: 27 February 2015
PDF: 8 pages
Proc. SPIE 9367, Silicon Photonics X, 93670C (27 February 2015); doi: 10.1117/12.2078080
Show Author Affiliations
Kensuke Ogawa, Fujikura Ltd. (Japan)
Kazuhiro Goi, Fujikura Ltd. (Japan)
Akira Oka, Fujikura Ltd. (Japan)
Yasuhiro Mashiko, Fujikura Ltd. (Japan)
Tsung-Yang Liow, A*STAR Institute of Microelectronics (Singapore)
Xiaoguang Tu, A*STAR Institute of Microelectronics (Singapore)
Guo-Qiang Lo, A*STAR Institute of Microelectronics (Singapore)
Dim-Lee Kwong, A*STAR Institute of Microelectronics (Singapore)
Soon Thor Lim, A*STAR Institute of High Performance Computing (Singapore)
Optic2Connect Pte Ltd. (Singapore)
Min Jie Sun, Optic2Connect Pte Ltd. (Singapore)
Ching Eng Png, A*STAR Institute of High Performance Computing (Singapore)
Optic2Connect Pte Ltd. (Singapore)

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

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