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Grating-Based Optical Fiber Interfaces for Silicon-on-Insulator Photonic Integrated Circuits

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6 Author(s)
Roelkens, G. ; Photonics Res. Group, Ghent Univ., Ghent, Belgium ; Vermeulen, D. ; Selvaraja, S. ; Halir, R.
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In this paper, we review our work on efficient interfaces between a silicon-on-insulator photonic IC and a single-mode optical fiber based on grating structures. Several device configurations are presented that provide high efficiency, polarization insensitive, and broadband optical coupling on a small footprint. The high alignment tolerance and the fact that the optical fiber interface is out-of-plane provide opportunities for easy packaging and wafer-scale testing of the photonic IC. Finally, an optical probe based on a grating structure defined on the fiber facet is described.

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Selected Topics in Quantum Electronics, IEEE Journal of  (Volume:17 ,  Issue: 3 )