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Authors: S. Dhoore, S. Uvin, D. Van Thourhout, G. Morthier, G. Roelkens
Title: Novel adiabatic tapered couplers for active III-V/SOI devices fabricated through transfer printing
Format: International Journal
Publication date: 6/2016
Journal/Conference/Book: Optics Express
Volume(Issue): 24(12) p.12976-12990
Location: United States
DOI: 10.1364/OE.24.012976
Citations: 23 ( - last update: 7/7/2024)
21 (OpenCitations - last update: 27/6/2024)
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We present the design of two novel adiabatic tapered coupling structures that allow efficient and alignment tolerant mode conversion between a III-V membrane waveguide and a single-mode SOI waveguide in active heterogeneously integrated devices. Both proposed couplers employ a broad intermediate waveguide to facilitate highly alignment tolerant coupling. This robustness is needed to comply with the current misalignment tolerance requirements for high-throughput transfer printing. The proposed coupling structures are expected to pave the way for transfer-printing-based heterogeneous integration of active III-V devices such as semiconductor optical amplifiers (SOAs), photodetectors, electro-absorption modulators (EAMs) and single wavelength lasers on silicon photonic integrated circuits.

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