Connecting Silicon Photonic Circuits to Multicore Fibers by Photonic Wire Bonding
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- 20 November 2014
- journal article
- research article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Journal of Lightwave Technology
- Vol. 33 (4) , 755-760
- https://doi.org/10.1109/jlt.2014.2373051
Abstract
Photonic wire bonding is demonstrated to enable highly efficient coupling between multicore fibers and planar silicon photonic circuits. The technique relies on in-situ fabrication of three-dimensional interconnect waveguides between the fiber facet and tapered silicon-on-insulator waveguides. Photonic wire bonding can easily compensate inaccuracies of core placement in the fiber cross-section, does not require active alignment, and is well suited for automated fabrication. We report on the design, on fabrication, and on characterization of photonic wire bonds. In a proof-of-principle experiment, a four-core fiber is coupled to a silicon photonic chip, leading to measured coupling losses as small as 1.7 dB.Keywords
Funding Information
- BMBF project PHOIBOS (13N12574)
- EU-FP7 project BigPipes
- European Research Council
- ERC Starting Grant “EnTeraPIC,” (280145)
- Center for Functional Nanostructures of the DFG
- Helmholtz International Research School for Teratronics
- Alfried Krupp von Bohlen und Halbach Foundation
- Karlsruhe Nano Micro
- Karlsruhe School of Optics & Photonics
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