期刊
APPLIED PHYSICS LETTERS
卷 80, 期 10, 页码 1710-1712出版社
AMER INST PHYSICS
DOI: 10.1063/1.1459111
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An all-optical Mach-Zehnder modulator is demonstrated which is composed of a polymer waveguide doped with a photochromic dye in the core and a thick light blocking metal layer on it. The metal layer was opened on one arm of the Mach-Zehnder modulator, so that only one arm of the modulator could be irradiated by modulation light, thus allowing a differential phase shift. The optical modulator exhibited an extinction ratio of about -12 dB at a wavelength of 1.55 mum. A simple kinetic model developed to delineate the refractive index change in the dye-doped polymer film was applied to predict the evolution of the modulation characteristics. (C) 2002 American Institute of Physics.
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