Improved design of a polarization converter based on semiconductor optical waveguide bends.

Abstract

By using an efficient vector finite-element-based beam-propagation method, we present an improved design of a polarization converter. This design relies on the use of a single-section deeply etched bent semiconductor waveguide with slanted sidewalls. By careful adjustment of the bend radius, the waveguide width, and the sidewall angle we obtained a nearly 100% polarization conversion ratio with no appreciable radiation loss and a bending angle of less than 180 degrees .

• Authors: S S Obayya, B M Rahman, K T Grattan, H A El-Mikati
• Journal: Applied optics (Appl Opt) Vol. 40 Issue 30 Pg. 5395-401 (Oct 20 2001) ISSN: 1559-128X [Print] United States
• PMID: 18364819 (Publication Type: Journal Article)