Magneto-optic effect in amorphous Bi3Fe5O 12 waveguides sputtered at room temperature

Hiroshi Taura; Yohei Shishido; Yuichiro Tanushi; Tomohiro Tokunaga; Takahiro Onimaru; Shin Yokoyama

doi:10.1143/JJAP.47.2915

Magneto-optic effect in amorphous Bi₃Fe₅O ₁₂ waveguides sputtered at room temperature

Hiroshi Taura, Yohei Shishido, Yuichiro Tanushi, Tomohiro Tokunaga, Takahiro Onimaru, Shin Yokoyama

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

We have fabricated optical waveguides using amorphous Bi₃Fe ₅O₁₂ (BIG) film deposited by RF magnetron sputtering at room temperature and evaluated the Faraday effect. The fabricated waveguide consists of Si waveguides and a short BIG waveguide. Light propagation loss of the BIG waveguide is 100 dB/cm. The optical modulation of 9% was obtained on the basis of the Faraday effect using the BIG waveguide/polarizer system at an external magnetic field of 2000 Oe. The figure of merit of 10deg/dB, which is 1/4 that of an epitaxial BIG film, was obtained.

Original language	English
Pages (from-to)	2915-2920
Number of pages	6
Journal	Japanese journal of applied physics
Volume	47
Issue number	4 PART 2
DOIs	https://doi.org/10.1143/JJAP.47.2915
Publication status	Published - 2008 Apr 25
Externally published	Yes

Keywords

Amorphous BiFeO
Faraday effect
Ferromagnetism
Figure of merit
Magneto-optic effect
Optical interconnection
Propagation loss
RF magnetron sputtering
Ring resonator optical switch
Waveguide

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

Access to Document

10.1143/JJAP.47.2915

Cite this

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title = "Magneto-optic effect in amorphous Bi3Fe5O 12 waveguides sputtered at room temperature",

abstract = "We have fabricated optical waveguides using amorphous Bi3Fe 5O12 (BIG) film deposited by RF magnetron sputtering at room temperature and evaluated the Faraday effect. The fabricated waveguide consists of Si waveguides and a short BIG waveguide. Light propagation loss of the BIG waveguide is 100 dB/cm. The optical modulation of 9% was obtained on the basis of the Faraday effect using the BIG waveguide/polarizer system at an external magnetic field of 2000 Oe. The figure of merit of 10deg/dB, which is 1/4 that of an epitaxial BIG film, was obtained.",

keywords = "Amorphous BiFeO, Faraday effect, Ferromagnetism, Figure of merit, Magneto-optic effect, Optical interconnection, Propagation loss, RF magnetron sputtering, Ring resonator optical switch, Waveguide",

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AU - Taura, Hiroshi

AU - Shishido, Yohei

AU - Tanushi, Yuichiro

AU - Tokunaga, Tomohiro

AU - Onimaru, Takahiro

AU - Yokoyama, Shin

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AB - We have fabricated optical waveguides using amorphous Bi3Fe 5O12 (BIG) film deposited by RF magnetron sputtering at room temperature and evaluated the Faraday effect. The fabricated waveguide consists of Si waveguides and a short BIG waveguide. Light propagation loss of the BIG waveguide is 100 dB/cm. The optical modulation of 9% was obtained on the basis of the Faraday effect using the BIG waveguide/polarizer system at an external magnetic field of 2000 Oe. The figure of merit of 10deg/dB, which is 1/4 that of an epitaxial BIG film, was obtained.

KW - Amorphous BiFeO

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KW - Ferromagnetism

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