Polymeric electro-optic modulator based on 1Ã2 Y-fed directional coupler
نویسندگان
چکیده
We have demonstrated a polymeric electro-optic modulator based on a 132 Y-fed directional waveguide coupler. The symmetric geometry of the 132 Y-fed directional coupler provided the modulator unique characteristics of intrinsic 3 dB operating point and two complementary output ends. A low switching voltage of 3.6 V and a high extinction ratio of 26 dB were obtained with the modulator operating at a wavelength of 1.34 mm. The modulator was fabricated with a novel electro-optic polymer that was synthesized from polyurethane cross-linking with a chromophore. © 2000 American Institute of Physics. @S0003-6951~00!01115-3#
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