Polymer-based micro/nanowire structures for three-dimensional photonic integrations

By assembling polymer micro/nanowires, 3D wire structures for photonic integrations were fabricated, including a 2 X 2 crossed structure, a 3 X 3 crossed structure, and a parallelogram structure. Optical waveguiding properties of the 3D wire structures were demonstrated with a measured insertion loss of 0.83 dB, on average, at 650 nm wavelength. Light can be transmitted vertically from one wire to another. Coupling efficiency between adjacent wires is tunable by changing the cross angle and the center-to-center distance. (c) 2008 Optical Society of America