Fully-automated optimization of grating couplers

Autor:	Su, Logan, Trivedi, Rahul, Sapra, Neil V., Piggott, Alexander Y., Vercruysse, Dries, Vučković, Jelena
Rok vydání:	2017
Předmět:	Physics - Applied Physics Physics - Optics
Druh dokumentu:	Working Paper
DOI:	10.1364/OE.26.004023
Popis:	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. Comment: 8 pages, 7 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1711.02228 Zobrazit plný text záznamu View this record from Arxiv