Waveguide optical isolators fabricated by wafer bonding

Tetsuya Mizumoto, Hideki Yokoi

Research output: Contribution to journalConference articlepeer-review

4 Citations (Scopus)


Wafer bonding of a magnetooptic garnet crystal to III-V compound semiconductor and LiNbO3 is discussed for the application to waveguide optical isolators. Two types of waveguide isolators, an interferometric isolator and a semileaky isolator, are discussed. The interferometric isolator uses nonreciprocal phase shift and is composed of the GaInAsP guiding layer. The isolator has the advantage of integratability with optical active devices. The semileaky isolator composed of a magnetooptic garnet guiding and LiNbO3 upper cladding layer has the advantages of large fabrication tolerance and wide operating wavelength range. The performance of isolators is also demonstrated.

Original languageEnglish
Article numberJ4.3
Pages (from-to)135-146
Number of pages12
JournalMaterials Research Society Symposium Proceedings
Publication statusPublished - 2005 Jun 20
EventMagneto-Optical Materials for Photonics and Recording - Boston, MA, United States
Duration: 2004 Nov 292004 Dec 2

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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