Germanium ion implantation for trimming the coupling efficiency of silicon racetrack resonators
Proceedings of SPIE(2019)
摘要
In recent years, we have presented results on the development of a variety of silicon photonic devices such as erasable gratings and directional couplers, tunable resonators and Mach-Zehnder interferometers, and programmable photonic circuits using germanium ion implantation and localised laser annealing. In this paper we have carried out experiments to analyse a series of devices that can be fabricated using the same technology, particularly silicon-on-insulator racetrack resonators which are very sensitive to fabrication imperfections. Simulation and experimental results revealed the ability to permanently optimise the coupling efficiency of these structures by selective localised laser annealing.
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关键词
Ion implantation,silicon-on-insulator,racetrack resonators,annealing,trimming
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