<p>Embodiments described herein provide methods for manufacturing an optical device having shaped sidewalls. A substrate material can be shaped to form a substrate portion of an optical device comprising an exit face and sidewalls positioned and shaped to reflect light to the exit face to allow light to escape the exit face. The sidewalls can be polished to a desired degree of polish. Polishing can be done using a polishing tool, etching, particle jet polishing or other polishing method.</p>
