Demonstration of flexible freestanding all-polymer integrated optical ring resonator devices

A simple method to fabricate thin freestanding all-polymer integrated optical devices and the transfer of the devices to various substrates, such as the curved surfaces of capillary tubes, is reported. A passive microring resonator optical filter device (see Figure) with a -27 dB notch extinction for wavelengths in the telecommunication band, which is within the range of requirements for practical telecommunications applications, is also shown.