PMID: 29475258DOI: 10.1364/oe.26.004023Feb 25, 2018Paper
Fully-automated optimization of grating couplers
Optics Express
Logan SuJelena Vučković
Abstract
We present a gradient-based algorithm to design general 1D grating couplers without any human input from start to finish, including a choice of initial condition. We show that we can reliably design efficient couplers to have multiple functionalities in different geometries, including conventional couplers for single-polarization and single-wavelength operation, polarization-insensitive couplers, and wavelength-demultiplexing couplers. In particular, we design a fiber-to-chip blazed grating with under 0.2 dB insertion loss that requires a single etch to fabricate and no back-reflector.
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Citations
Sep 13, 2019·Optics Express·Daniel BenedikovicLaurent Vivien
Dec 25, 2019·Scientific Reports·Rahul TrivediJelena Vuckovic
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