Preliminary experiment for polymer waveguide-type optical isolator: A pulsed optical isolator operation in poly (l-menthylmethacrylate/benzylmethacrylate) copolymer slab waveguide

Shinzo Muto, Kiyoshi Ishiyama, Eisuke Nihei, Yasuhiro Koike

Research output: Contribution to journalArticle

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Abstract

A copolymer of l-menthylmethacrylate (MtMA) and benzylmethacrylate (BzMA), poly(MtMA/BzMA) was synthesized to construct a polymer slab waveguide-type optical isolator operating in the blue wavelength region. This isolator is based on the simultaneously occuring reciprocal and nonreciprocal TE-TM mode conversions in a three-layered slab waveguide which consists of the poly(MtMA/BzMA) copolymer core on a fused quartz substrate. When a high magnetic field of about 18 kOe was applied to a device with a core thickness of 4.5 μm and a 5 cm propagation length, a pulsed optical isolator operation with an isolation ratio of approximately 15 dB was obtained at a wavelength of 441.6 nm, for the first time.

Original languageEnglish
Pages (from-to)4405-4408
Number of pages4
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume37
Issue number8
Publication statusPublished - 1998 Aug 1

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Keywords

  • Copolymer
  • Magnetooptical polymer
  • Optical activity
  • Optical isolator
  • Slab waveguide
  • TE-TM mode conversion

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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