Temperature-insensitive design of waveguide isolator employing nonreciprocal guided-radiation mode conversion

Salinee Choowitsakunlert, Takuya Kobashigawa, Nariaki Hosoya, Rardchawadee Silapunt, Hideki Yokoi

研究成果: Article

抄録

The temperature dependence of the optical isolator employing a nonreciprocal guided-radiation mode conversion is investigated. The optical isolator consists of a rib-type magnetooptic waveguide with an amorphous Si (a-Si:H) guiding layer. The nonreciprocal phase shift in the optical isolator is calculated at a wavelength of 1.55 μm. The relationship of rib height and rib width for the isolator operation is clarified for various operating temperatures. Refractive indices of layers in the magnetooptic waveguide are considered since proper refractive indices can circumvent waveguide parameter deviation due to the temperature shift. The results show that athermal operation can be achieved by the negative temperature dependence of the refractive index of the upper cladding layer, and the relationship of waveguide parameters varies only slightly with the selected upper cladding layer.

元の言語English
記事番号112201
ジャーナルJapanese Journal of Applied Physics
57
発行部数11
DOI
出版物ステータスPublished - 2018 11 1

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Waveguide isolators
isolators
Waveguides
waveguides
Radiation
Refractive index
Magnetooptical effects
radiation
refractivity
Temperature
temperature dependence
temperature
operating temperature
Phase shift
phase shift
deviation
Wavelength
shift
wavelengths

ASJC Scopus subject areas

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

これを引用

Temperature-insensitive design of waveguide isolator employing nonreciprocal guided-radiation mode conversion. / Choowitsakunlert, Salinee; Kobashigawa, Takuya; Hosoya, Nariaki; Silapunt, Rardchawadee; Yokoi, Hideki.

:: Japanese Journal of Applied Physics, 巻 57, 番号 11, 112201, 01.11.2018.

研究成果: Article

Choowitsakunlert, Salinee ; Kobashigawa, Takuya ; Hosoya, Nariaki ; Silapunt, Rardchawadee ; Yokoi, Hideki. / Temperature-insensitive design of waveguide isolator employing nonreciprocal guided-radiation mode conversion. :: Japanese Journal of Applied Physics. 2018 ; 巻 57, 番号 11.
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