3D nanoprinting of mode-field conversion tapers for low-loss optical interfacing of single-mode fibers and photonic integrated circuits

Research output: Chapter in Book/Report/Conference proceedingConference paper

Abstract

We present our latest results on the design and fabrication of mode-field conversion tapers for low-loss optical interconnects. These structures are fabricated by means of two-photon polymerization-based 3D nanoprinting. We experimentally demonstrate that our 3D nanoprinted downtapers outperform conventional lensed fibers for low-loss edge coupling of single-mode fibers with SOI, Si3N4 and InP-based photonic integrated circuits. They are also more robust as they allow butt coupling rather than free-space coupling. Non-linear taper profiles allow shortening the length of the downtapers while keeping their performance. We also demonstrate 3D nanoprinted uptapers that allow for relaxation of the lateral misalignment tolerances.
Original languageEnglish
Title of host publication3D nanoprinting of mode-field conversion tapers for low-loss optical interfacing of single-mode fibers and photonic integrated circuits
EditorsHenning Schroder, Ray T. Chen
PublisherSPIE
Pages1-11
Number of pages11
Volume11692
ISBN (Electronic)9781510642195
ISBN (Print)978-1-5106-4219-5
DOIs
Publication statusPublished - 2021
EventConference on Optical Interconnects XXI - ELECTR NETWORK
Duration: 6 Mar 202111 Mar 2021

Conference

ConferenceConference on Optical Interconnects XXI
Period6/03/2111/03/21

Keywords

  • 3D nanoprinting; laser direct writing; two-photon polymerization; interfacing structures; polymer waveguides; fiber-to-PIC interfacing; mode conversion; edge coupling; photonic integrated circuits

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