Waveguide fabrication using organic nonlinear optical materials

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Abstract
Among many types of nonlinear optical (NLO) polymers developed, this paper has focused on azo-dye-functionalized polymers and discussed their channel waveguide fabrication for photonic applications. After examining the critical issues of the polymer waveguide fabrication, serially-grafted quasi-phase-matching waveguide for frequency conversion, 3rd-order NLO polymer waveguide for all optical switch and trench-filled waveguide grating for wavelength filter were discussed. The serially-grafted waveguide structure described in this paper will be a key area for future photonic signal processing systems.