Optimization algorithm for short, low-loss transition tapers from strip to subwavelength grating waveguide

Aleksei V. Kukin; Dan M. Marom

doi:10.1364/IPRSN.2020.ITh3A.5

OSA Advanced Photonics Congress (AP) 2020 (IPR, NP, NOMA, Networks, PVLED, PSC, SPPCom, SOF)
OSA Technical Digest (Optica Publishing Group, 2020),
paper ITh3A.5
•https://doi.org/10.1364/IPRSN.2020.ITh3A.5

Optimization algorithm for short, low-loss transition tapers from strip to subwavelength grating waveguide

Aleksei V. Kukin and Dan M. Marom

Integrated Photonics Research, Silicon and Nanophotonics 2020

Washington, DC United States
13–16 July 2020
ISBN: 978-1-943580-79-8

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Novel Materials and Designs (ITh3A)

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A. V. Kukin and D. M. Marom, "Optimization algorithm for short, low-loss transition tapers from strip to subwavelength grating waveguide," in OSA Advanced Photonics Congress (AP) 2020 (IPR, NP, NOMA, Networks, PVLED, PSC, SPPCom, SOF), L. Caspani, A. Tauke-Pedretti, F. Leo, and B. Yang, eds., OSA Technical Digest (Optica Publishing Group, 2020), paper ITh3A.5.

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Abstract

We investigate the taper transition in SiN from strip to subwavelength sampled waveguides and propose an iterative algorithm that converges to optimal transition. The resulting taper length is minimized and its efficiency converges to lossless.

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