Axially Tapered Circular Core Polymer Optical Waveguides Enabling Highly Efficient Light Coupling

In this paper, we present axially tapered circular core polymer optical waveguides which allow high-efficiency light coupling between optical components such as light sources, fibers/waveguides, and detectors with a wide misalignment tolerance. We experimentally fabricate the taper shaped polymer waveguides by applying imprinting method or the Mosquito method, and both experimentally and theoretically verify the high optical functionality of the tapered waveguides from the optical packaging technology point of view.