Abstract
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 μm. 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.
Original language | English |
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Pages (from-to) | 1710-1712 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 80 |
Issue number | 10 |
DOIs | |
Publication status | Published - 2002 Mar 11 |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)