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
Link To Document :
