Paper
13 November 2014 GeSi photonics for telecommunication applications
Papichaya Chaisakul, Vladyslav Vakarin, Delphine Marris-Morini, Jacopo Frigerio, Kazumi Wada, Giovanni Isella, Laurent Vivien
Author Affiliations +
Abstract
We experimentally and theoretically investigate GeSi-based photonics for future on-chip optical interconnect on bulk Silicon substrates with dense wavelength division multiplexing (WDM) system. We experimentally show that Ge-rich Si1-xGex can be used as both a passive low loss waveguide and a substrate to facilitate low-temperature epitaxial growth of Ge-based active devices working at low optical loss wavelength of Ge-rich Si1-xGex waveguides. We also theoretically discussed the possibilities to realize a compact passive component based on Ge-rich Si1-xGex material system on bulk Si wafer. From simulation the system based on Ge-rich Si1-xGex waveguide and the Si1-yGey (y < x) lower cladding layer is good enough to ensure compactness of important on-chip photonic components including passive waveguide and GeSi-based array waveguide grating (AWG). The small refractive index contrast between Ge-rich Si1-xGex waveguide and the Si1-yGey lower cladding layer potentially avoid the polarization dependent loss and detrimental fabrication tolerance of WDM system. Our studies show that GeSi-based photonics could uniquely provide both passive and active functionalities for dense WDM system.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Papichaya Chaisakul, Vladyslav Vakarin, Delphine Marris-Morini, Jacopo Frigerio, Kazumi Wada, Giovanni Isella, and Laurent Vivien "GeSi photonics for telecommunication applications", Proc. SPIE 9277, Nanophotonics and Micro/Nano Optics II, 92770E (13 November 2014); https://doi.org/10.1117/12.2071507
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Waveguides

Germanium

Silicon

Photonics

Integrated optics

Quantum wells

Active optics

Back to Top