28 February 2008 Taper control of radially symmetric gradient-index waveguides in photopolymer
Author Affiliations +
Abstract
Optical waveguide adiabatic tapers enable low-loss connections between devices with dissimilar mode profiles. Common examples are semiconductor lasers, single-mode optical fibers and planar waveguides. Planar lithographic processes can easily create tapers in the plane but out-of-plane, symmetric tapers are difficult. Three-dimensional direct-write lithography into photopolymer naturally creates radially-symmetric waveguides when the motion is parallel to the optical axis of the writing focus, but absorption in the photopolymer inevitably attenuates the index with depth. We demonstrate that material absorption, translation speed and/or writing power can be used to control this taper, providing an inexpensive mode coupler for integrated optical systems.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Robert R. McLeod, Amy C. Sullivan, "Taper control of radially symmetric gradient-index waveguides in photopolymer", Proc. SPIE 6896, Integrated Optics: Devices, Materials, and Technologies XII, 68960C (28 February 2008); doi: 10.1117/12.761056; https://doi.org/10.1117/12.761056
PROCEEDINGS
9 PAGES


SHARE
Back to Top