DocumentCode
1098557
Title
Analysis of a rectangular waveguide isolator
Author
Tateda, Mitsuhiro ; Kimura, Tatsuya
Author_Institution
Nippon Telegraph and Telephone Public Corp., Musashinoshi, Tokyo, Japan
Volume
1
Issue
1
fYear
1983
fDate
3/1/1983 12:00:00 AM
Firstpage
214
Lastpage
223
Abstract
Isolator conditions are derived for a rectangular waveguide in which magneto-optical and anisotropic dielectric crystals are integrated for reciprocal and nonreciprocal 
mode conversion functions, respectively. Relations between structural parameters are derived by perturbation analysis, and design examples of single-mode isolators with 3.6-, 4.6-, and 6.6-μm square cores are given at the 1.55-μm wavelength. Tolerances in the structural parameter deviations are investigated analytically and numerically. Isolation of more than 20 dB is feasible without any parameter adjustment even when there is a 9- percent deviation in the core dimension.
mode conversion functions, respectively. Relations between structural parameters are derived by perturbation analysis, and design examples of single-mode isolators with 3.6-, 4.6-, and 6.6-μm square cores are given at the 1.55-μm wavelength. Tolerances in the structural parameter deviations are investigated analytically and numerically. Isolation of more than 20 dB is feasible without any parameter adjustment even when there is a 9- percent deviation in the core dimension.Keywords
Infrared propagation, anisotropic media; Magnetooptic materials/devices; Optical fiber transmitters, lasers; Optical isolators; Optical waveguides; Anisotropic magnetoresistance; Dielectrics; Electromagnetic waveguides; Isolators; Magnetic analysis; Magnetic cores; Optical films; Optical refraction; Optical waveguides; Rectangular waveguides;
fLanguage
English
Journal_Title
Lightwave Technology, Journal of
Publisher
ieee
ISSN
0733-8724
Type
jour
DOI
10.1109/JLT.1983.1072075
Filename
1072075
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