8 research outputs found
Hybrid 2D/3D Photonic Integration for Non-Planar Circuit Topologies
We present a concept for realizing crossing-free photonic integrated circuits (PIC) using 3D freeform waveguides. We prove the viability of the approach using a silicon photonic 4 x 4 switch-andselect device. The method is applicable to a wide range of PIC technologies
Hybrid integration of silicon photonics circuits and InP lasers by photonic wire bonding
Efficient coupling of III-V light sources to silicon photonic circuits is one
of the key challenges of integrated optics. Important requirements are low
coupling losses, as well as small footprint and high yield of the overall
assembly, along with the ability to use automated processes for large-scale
production. In this paper, we demonstrate that photonic wire bonding addresses
these challenges by exploiting direct-write two-photon lithography for in-situ
fabrication of three-dimensional freeform waveguides between optical chips. In
a series proof-of-concept experiments, we connect InP-based horizontal-cavity
surface emitting lasers (HCSEL) to passive silicon photonic circuits with
insertion losses down to 0.4 dB. To the best of our knowledge, this is the most
efficient interface between an InP light source and a silicon photonic chip
that has so far been demonstrated. Our experiments represent a key step in
advancing photonic wire bonding to a universal integration platform for hybrid
photonic multi-chip assemblies that combine known-good dies of different
materials to high-performance hybrid multi-chip modules.Comment: 9 pages, 5 figure
Silicon-organic hybrid devices for high-speed electro-optic signal processing
Among the various elements of the silicon photonics platform, electro-optic IQ modulators play an important role. In this book, silicon-organic hybrid (SOH) integration is used to realize electro-optic IQ modulators for complex signal processing. Leveraging the high nonlinearity of organic materials, SOH IQ modulators provide low energy consumption for high-speed data transmission and frequency shifting. Furthermore, the device design is adapted for commercial foundry processes