Direct optical wire bonding through open-to-air polymerization for silicon photonic chips

Article Optics

Design and two-photon direct laser writing of low-loss waveguides, tapers and S-bends

Tigran Baghdasaryan et al.

Summary: This study focused on the efficient design of optical waveguide-based building blocks using two-photon polymerization-based direct laser writing. Numerical investigations were conducted on air-clad waveguides, tapers, and S-bends to minimize insertion losses and reduce device sizes. The research successfully demonstrated waveguides with square and circular cross-sections mode-matched with single-mode optical fibers, identified parabolic tapers for adiabatic transitions between different waveguide sizes, and designed optimized S-bends with Bezier curve shapes. These components were fabricated and confirmed to have nearly lossless performance. The study provides design rules and ready-to-use recipes for fabricating low-loss 3D-printed waveguide-based building blocks, aiming to inspire the development of efficient photonic devices for diverse application fields.

JOURNAL OF PHYSICS-PHOTONICS (2021)

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Article Engineering, Electrical & Electronic

Multi-Channel Single-Mode Polymer Waveguide Fabricated Using the Mosquito Method

Sho Yakabe et al.

Summary: The Mosquito method has been experimentally proven to be capable of fabricating polymer optical waveguides with single-mode cores. The shape of the needle periphery was found to significantly affect the fabrication of perfectly circular cross-sectional cores. Additionally, the Mosquito method was shown to reduce the MFD variation to 0.4 μm, comparable to typical single-mode optical fibers.

JOURNAL OF LIGHTWAVE TECHNOLOGY (2021)

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Article Engineering, Electrical & Electronic

Silicon circuits for chip-to-chip communications in multi-socket server board interconnects

Miltiadis Moralis-Pegios et al.

Summary: The article discusses the current electrical interconnects for multi-socket server boards and proposes the use of silicon photonics technology to improve interconnect throughput and energy efficiency. By utilizing WDM SiPho transceivers and routers, it is possible to achieve high-speed collision-less connectivity for up to 16 nodes, showcasing the feasibility of single-hop point-to-point interconnects in systems with more than 4 sockets.

IET OPTOELECTRONICS (2021)

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Article Engineering, Electrical & Electronic