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  • 2017 European Conference on Lasers and Electro-Optics and European Quantum Electronics Conference
  • (Optica Publishing Group, 2017),
  • paper CK_5_2

Trimming of Silicon-on-insulator Micro-ring Resonators by Laser Irradiation

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Silicon on Insulator (SOI) is a well-established photonic platform that is of interest to photonic integrated circuits (PICs) due to its compatibility with existing fabrication processes used in the manufacture of electronic integrated circuits. Although SOI offers a high refractive index contrast that enables strong optical confinement of the propagating optical mode in the silicon layer, the performance of the photonic circuit components (such as, for example, ring resonators) is significantly dependant on fabrication tolerance. This can result in ring resonances that substantially deviate from the designed ones. It is therefore advantageous to be able to trim or tune such components post-processing, so as to adjust a resonance to the desired wavelength.

© 2017 IEEE

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