Low-loss graded-index polymer crossed optical waveguide with high thermal resistance

Kohei Abe, Yutaro Oizumi, Takaaki Ishigure

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Abstract: In this paper, crossed polymer waveguides with graded-index (GI) square cores are fabricated using the soft-lithography method. We experimentally demonstrate that the fabricated GI-core crossed waveguides exhibit a much lower insertion loss than conventional step index (SI)-core counterparts, which is almost independent of the cross angle. We also show in this paper that the crossed waveguides fabricated applying organic-inorganic hybrid resins show remarkably high thermal resistance compared to the waveguides fabricated utilizing an acrylate resin and a dopant system we previously reported.

Original languageEnglish
Pages (from-to)4512-4521
Number of pages10
JournalOptics Express
Issue number4
Publication statusPublished - 2018 Feb 19

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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