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Authors: L. Alloati, D. Korn, J. Pfeifle, R. Palmer, S. Koeber, M. Baier, R. Schmogrow, S. Diebold, P. Dahl, T. Zwick, H. Yu, W. Bogaerts, R. Baets, M. Fournier, J.-M. Fedeli, R. Dinu, C. Koos, W. Freude, J. Leuthold
Title: Silicon-Organic Hybrid Devices
Format: International Conference Proceedings
Publication date: 2/2013
Journal/Conference/Book: SPIE Photonics West Conference - Silicon Photonics VIII (invited)
Editor/Publisher: SPIE, 
Volume(Issue): 8629 p.86290P
Location: San Francisco, United States
Internal Reference: [N-1455]
DOI:
Download: Download this Publication (3MB) (3MB)

Abstract

Silicon-organic hybrid (SOH) devices combine silicon waveguides with a number of specialized materials, ranging from third-order optically-nonlinear molecules to second-order nonlinear polymers and liquid-crystals. Second-order nonlinear materials allow building high-speed and low-voltage electro-optic modulators, which are key components for future silicon-based photonics transceivers. We report on a 90 GHz bandwidth phase modulator, and on a 56 Gbit/s QPSK experiment using an IQ Pockels effect modulator. By using liquid-crystal claddings instead, we show experimentally that phase shifters with record-low power consumption and ultra-low voltage-length product of VðL = 0.06 Vmm. Secondorder nonlinear materials, moreover, allow creating nonlinear waveguides for sum- or difference-frequency generation, and for lowest-noise optical parametric amplification. These processes are exploited for a large variety of applications, like in the emerging field of on-chip generation of mid-IR wavelengths, where pump powers are significantly smaller compared to equivalent devices using third-order nonlinear materials. In this work, we present the first SOH waveguide design suited for second-order nonlinear processes. We predict for our device an amplification of 14 dB/cm assuming a conservative ÷(2)-nonlinearity of 230 pm/V and a CW pump power as low as 20 dBm. © (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.

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