Simple to fabricate and highly efficient spot-size converters

Research Area: III-V Semiconductor Photonic ICs

Main Researcher: Wouter D'Oosterlinck

There are two rationales for the use of integrated spot-size converters (SSC): 1) fiber coupling and pigtailing of photonic integrated circuits (PIC), and 2) hybrid integration of lasers, semiconductor optical amplifiers and other PIC’s with low-loss silica on silicon planar circuits. We investigate SSC’s that are based on a tapered active region and an underlying passive guide. Simple to fabricate and highly efficient SSC’s have been developed.

SEM photograph of two SSC

Other people involved:

• Wouter D'Oosterlinck

PhD thesises