Interferometric optical isolator employing a nonreciprocal phase shift operated in a unidirectional magnetic field

Hideki Yokoi, Yuya Shoji, Etsu Shin, Tetsuya Mizumoto

研究成果: Article査読

12 被引用数 (Scopus)

抄録

An interferometric optical isolator that employs a nonreciprocal phase shift was studied. The optical isolator consisted of an interferometer with distinct layer structures. A traveling light wave underwent distinct nonreciprocal phase shifts such that the optical isolator could be operated in a unidirectional magnetic field. The optical isolator, in which the waveguide had a HfO2 cladding layer in one of the arms, was designed at a wavelength of 1.55 μm. The propagation distance of the nonreciprocal phase shifter required for the isolator's operation was less than 1.5 mm. The device's total length was less than 2 mm. An optical isolator with distinct layer structures was fabricated and evaluated. An isolation ratio of approximately 9.9 dB was obtained in the unidirectional magnetic field.

本文言語English
ページ(範囲)4745-4752
ページ数8
ジャーナルApplied Optics
43
24
DOI
出版ステータスPublished - 2004 8 20

ASJC Scopus subject areas

  • 原子分子物理学および光学
  • 工学(その他)
  • 電子工学および電気工学

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