Garnet photonics toward developing laser diode integrated with optical isolator with Si guiding layer

Hideki Yokoi, Shun Igarashi, Yuki Uchiumi, Kazuya Tani

Research output: Contribution to journalArticle


A nonreciprocal phase shift occurs in TM modes that travel in magneto-optic waveguides in which magnetization is aligned transverse to the light propagation direction in the film plane. The large nonreciprocal phase shift is obtained when a magneto-optic waveguide comprises a guiding layer with a high-refractive-index material. A magneto-optic waveguide with a Si guiding layer is obtained by depositing the Si layer on a magnetic garnet layer. An optical isolator employing a nonreciprocal phase shift is described which has the magneto-optic waveguide with the Si guiding layer. A laser diode integrated with the optical isolator can be developed by connecting the laser diode on the Si layer in the magneto-optic waveguide, which is a concept of garnet photonics.

Original languageEnglish
Pages (from-to)1071-1074
Number of pages4
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Issue number3
Publication statusPublished - 2011 Mar



  • Garnet
  • Nonreciprocal phase shift
  • Optical isolator
  • Si

ASJC Scopus subject areas

  • Condensed Matter Physics

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