Nonreciprocal Properties of Waveguide-Type Mono-Sectional Optical Isolators Using Bi: YIG Thin-Films

Kazunari TAKI; Yasumitsu MIYAZAKI

Nonreciprocal Properties of Waveguide-Type Mono-Sectional Optical Isolators Using Bi: YIG Thin-Films

Kazunari TAKI, Yasumitsu MIYAZAKI

Full Text Views

0

Cite this

Summary :

Nonreciprocal mode conversion properties and isolation ratios have been experimentally investigated for a mono-sectional optical isolator. The unidirectional mode converter of the mono-sectional optical isolator consists of a Bi-substituted YIG single crystal film sputtered on a GGG substrate. The mode converter is uniformly magnetized at angles with respect to both the film normal and the light propagation direction so that the Faraday and the Cotton-Mouton effects simultaneously occur in one mode converter. At the propagation length of 2.4 mm, the maximum isolation ratio of 13.0 dB has been obtained for the magnetic field of 100.2 Oe which tilts by 6.4and 38.8from the film normal and the plane transverse to the light propagation direction, respectively. In order to achieve large isolation, it is important to control the longitudinal magnetic field component. The insertion loss of the mode converter has been estimated to be 5.5 dB.

Publication: IEICE TRANSACTIONS on transactions Vol.E71-E No.2 pp.161-166

Publication Date: 1988/02/25

Publicized

Online ISSN

DOI

Type of Manuscript: PAPER

Category: Electro-Optics

Authors

Kazunari TAKI
Yasumitsu MIYAZAKI

Keyword

Cite this

Copy

Kazunari TAKI, Yasumitsu MIYAZAKI, "Nonreciprocal Properties of Waveguide-Type Mono-Sectional Optical Isolators Using Bi: YIG Thin-Films" in IEICE TRANSACTIONS on transactions, vol. E71-E, no. 2, pp. 161-166, February 1988, doi: .
Abstract: Nonreciprocal mode conversion properties and isolation ratios have been experimentally investigated for a mono-sectional optical isolator. The unidirectional mode converter of the mono-sectional optical isolator consists of a Bi-substituted YIG single crystal film sputtered on a GGG substrate. The mode converter is uniformly magnetized at angles with respect to both the film normal and the light propagation direction so that the Faraday and the Cotton-Mouton effects simultaneously occur in one mode converter. At the propagation length of 2.4 mm, the maximum isolation ratio of 13.0 dB has been obtained for the magnetic field of 100.2 Oe which tilts by 6.4and 38.8from the film normal and the plane transverse to the light propagation direction, respectively. In order to achieve large isolation, it is important to control the longitudinal magnetic field component. The insertion loss of the mode converter has been estimated to be 5.5 dB.
URL: https://global.ieice.org/en_transactions/transactions/10.1587/e71-e_2_161/_p

Copy

@ARTICLE{e71-e_2_161,
author={Kazunari TAKI, Yasumitsu MIYAZAKI, },
journal={IEICE TRANSACTIONS on transactions},
title={Nonreciprocal Properties of Waveguide-Type Mono-Sectional Optical Isolators Using Bi: YIG Thin-Films},
year={1988},
volume={E71-E},
number={2},
pages={161-166},
abstract={Nonreciprocal mode conversion properties and isolation ratios have been experimentally investigated for a mono-sectional optical isolator. The unidirectional mode converter of the mono-sectional optical isolator consists of a Bi-substituted YIG single crystal film sputtered on a GGG substrate. The mode converter is uniformly magnetized at angles with respect to both the film normal and the light propagation direction so that the Faraday and the Cotton-Mouton effects simultaneously occur in one mode converter. At the propagation length of 2.4 mm, the maximum isolation ratio of 13.0 dB has been obtained for the magnetic field of 100.2 Oe which tilts by 6.4and 38.8from the film normal and the plane transverse to the light propagation direction, respectively. In order to achieve large isolation, it is important to control the longitudinal magnetic field component. The insertion loss of the mode converter has been estimated to be 5.5 dB.},
keywords={},
doi={},
ISSN={},
month={February},}

Copy

TY - JOUR
TI - Nonreciprocal Properties of Waveguide-Type Mono-Sectional Optical Isolators Using Bi: YIG Thin-Films
T2 - IEICE TRANSACTIONS on transactions
SP - 161
EP - 166
AU - Kazunari TAKI
AU - Yasumitsu MIYAZAKI
PY - 1988
DO -
JO - IEICE TRANSACTIONS on transactions
SN -
VL - E71-E
IS - 2
JA - IEICE TRANSACTIONS on transactions
Y1 - February 1988
AB - Nonreciprocal mode conversion properties and isolation ratios have been experimentally investigated for a mono-sectional optical isolator. The unidirectional mode converter of the mono-sectional optical isolator consists of a Bi-substituted YIG single crystal film sputtered on a GGG substrate. The mode converter is uniformly magnetized at angles with respect to both the film normal and the light propagation direction so that the Faraday and the Cotton-Mouton effects simultaneously occur in one mode converter. At the propagation length of 2.4 mm, the maximum isolation ratio of 13.0 dB has been obtained for the magnetic field of 100.2 Oe which tilts by 6.4and 38.8from the film normal and the plane transverse to the light propagation direction, respectively. In order to achieve large isolation, it is important to control the longitudinal magnetic field component. The insertion loss of the mode converter has been estimated to be 5.5 dB.
ER -