Open AccessWideband operation of Mach-Zehnder interferomertic magneto-optical isolator using phase adjustment
Author(s) -
Yuya Shoji,
Tetsuya Mizumoto
Publication year - 2007
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.15.013446
Subject(s) - wideband , isolator , optics , optical isolator , interferometry , materials science , mach–zehnder interferometer , phase (matter) , wavelength , physics , optical fiber , electronic engineering , engineering , quantum mechanics
A wideband operation of a magneto-optical isolator is demonstrated. The isolator is based on a Mach-Zehnder interferometer employing nonreciprocal phase shift. The wideband operation is achieved by adjusting a reciprocal phase difference in the interferometer. We designed and fabricated a wideband isolator with a magneto-optic garnet waveguide. The isolation ratio of 15-25dB was obtained in a wavelength range from 1530nm to 1640nm.