Design of polarization rotators in TE-TM mode conversion optical isolator with Ce: YIG guiding layer

Yukihiro Okada, Daisuke Tamura, Kouya Kobayashi, Hideki Yokoi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

An optical isolator with a (CeY)3Fe5O12 guiding layer employing TE-TM mode conversion was investigated. The optical isolator consisted of a nonreciprocal polarization rotator and a reciprocal polarization rotator. The reciprocal polarization rotator was realized by inserting a polyimide halfwave plate into a groove in the magnetooptic waveguide. Propagation distances required for the nonreciprocal polarization rotator were calculated at a wavelength of 1.55 μm. Diffraction loss due to the insertion of the half-wave plate was also calculated. The reciprocal polarization rotator integrated with a spot-size converter was proposed for suppressing the diffraction loss. By introducing the spot-size converter for an input facet and an output facet of the half-wave plate, a calculated total insertion loss was reduced to 0.22 dB.

Original languageEnglish
Article number092202
JournalJapanese Journal of Applied Physics
Volume54
Issue number9
DOIs
Publication statusPublished - 2015 Sep 1

Fingerprint

isolators
yttrium-iron garnet
Polarization
polarization
converters
flat surfaces
Diffraction
Magnetooptical effects
Insertion losses
polyimides
diffraction
insertion loss
Polyimides
grooves
insertion
Waveguides
waveguides
Wavelength
propagation
output

ASJC Scopus subject areas

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

Cite this

Design of polarization rotators in TE-TM mode conversion optical isolator with Ce : YIG guiding layer. / Okada, Yukihiro; Tamura, Daisuke; Kobayashi, Kouya; Yokoi, Hideki.

In: Japanese Journal of Applied Physics, Vol. 54, No. 9, 092202, 01.09.2015.

Research output: Contribution to journalArticle

@article{2f66d967b11947a79988f7a045fe2358,
title = "Design of polarization rotators in TE-TM mode conversion optical isolator with Ce: YIG guiding layer",
abstract = "An optical isolator with a (CeY)3Fe5O12 guiding layer employing TE-TM mode conversion was investigated. The optical isolator consisted of a nonreciprocal polarization rotator and a reciprocal polarization rotator. The reciprocal polarization rotator was realized by inserting a polyimide halfwave plate into a groove in the magnetooptic waveguide. Propagation distances required for the nonreciprocal polarization rotator were calculated at a wavelength of 1.55 μm. Diffraction loss due to the insertion of the half-wave plate was also calculated. The reciprocal polarization rotator integrated with a spot-size converter was proposed for suppressing the diffraction loss. By introducing the spot-size converter for an input facet and an output facet of the half-wave plate, a calculated total insertion loss was reduced to 0.22 dB.",
author = "Yukihiro Okada and Daisuke Tamura and Kouya Kobayashi and Hideki Yokoi",
year = "2015",
month = "9",
day = "1",
doi = "10.7567/JJAP.54.092202",
language = "English",
volume = "54",
journal = "Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes",
issn = "0021-4922",
publisher = "Japan Society of Applied Physics",
number = "9",

}

TY - JOUR

T1 - Design of polarization rotators in TE-TM mode conversion optical isolator with Ce

T2 - YIG guiding layer

AU - Okada, Yukihiro

AU - Tamura, Daisuke

AU - Kobayashi, Kouya

AU - Yokoi, Hideki

PY - 2015/9/1

Y1 - 2015/9/1

N2 - An optical isolator with a (CeY)3Fe5O12 guiding layer employing TE-TM mode conversion was investigated. The optical isolator consisted of a nonreciprocal polarization rotator and a reciprocal polarization rotator. The reciprocal polarization rotator was realized by inserting a polyimide halfwave plate into a groove in the magnetooptic waveguide. Propagation distances required for the nonreciprocal polarization rotator were calculated at a wavelength of 1.55 μm. Diffraction loss due to the insertion of the half-wave plate was also calculated. The reciprocal polarization rotator integrated with a spot-size converter was proposed for suppressing the diffraction loss. By introducing the spot-size converter for an input facet and an output facet of the half-wave plate, a calculated total insertion loss was reduced to 0.22 dB.

AB - An optical isolator with a (CeY)3Fe5O12 guiding layer employing TE-TM mode conversion was investigated. The optical isolator consisted of a nonreciprocal polarization rotator and a reciprocal polarization rotator. The reciprocal polarization rotator was realized by inserting a polyimide halfwave plate into a groove in the magnetooptic waveguide. Propagation distances required for the nonreciprocal polarization rotator were calculated at a wavelength of 1.55 μm. Diffraction loss due to the insertion of the half-wave plate was also calculated. The reciprocal polarization rotator integrated with a spot-size converter was proposed for suppressing the diffraction loss. By introducing the spot-size converter for an input facet and an output facet of the half-wave plate, a calculated total insertion loss was reduced to 0.22 dB.

UR - http://www.scopus.com/inward/record.url?scp=84940981856&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84940981856&partnerID=8YFLogxK

U2 - 10.7567/JJAP.54.092202

DO - 10.7567/JJAP.54.092202

M3 - Article

AN - SCOPUS:84940981856

VL - 54

JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

SN - 0021-4922

IS - 9

M1 - 092202

ER -