Simple process for fabricating a monolithic polymer optical waveguide

Takayuki Matsui, Kyoji Komatsu, Okihiro Sugihara, Toshikuni Kaino

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


A simple and economical fabrication process for a monolithic polymer optical waveguide in which different materials are serially grafted is proposed and demonstrated. A cladding layer with a waveguide core groove is fabricated by microtransfer molding, An epoxy resin solution is spin coated onto the cladding before selective photoexposure to form a transparent waveguide core. An optical functional polymer solution is then spin coated to form a serially grafted waveguide structure. Thus two types of polymer fill the groove to realize a monolithically integrated waveguide. Controlling the groove shape results in a flat surface. A low connection loss between the two polymers, less than 0.01 dB/point, is obtained.

Original languageEnglish
Pages (from-to)970-972
Number of pages3
JournalOptics Letters
Issue number9
Publication statusPublished - 2005 May 1
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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