A Novel Thermooptic Polymer Switch Based on Directional Coupler Structure
Abu Sahmah Mohd Supa’at, Mohd. Haniff Ibrahim, Abu Bakar Mohammad, Norazan Mohd Kassim and Nurzal Effiyana Ghazali
DOI : 10.3844/ajassp.2008.1552.1557
American Journal of Applied Sciences
Volume 5, Issue 11
A novel thermooptic (TO) polymer switch based on directional coupler structure is proposed for the first time. The key element of the proposed switch is a buried square core polymer waveguides which has been designed for optimum mode matching and coupling with the single mode optical fiber configuration and have large effective index difference by the thermooptic effects. At a wavelength of 1.55 Âµm with the index contrast of 0.005 between the core and the cladding, the crosstalk of -40 dB and -37 dB for the cross-state and the bar-state of TO switch is demonstrated, respectively.
© 2008 Abu Sahmah Mohd Supa’at, Mohd. Haniff Ibrahim, Abu Bakar Mohammad, Norazan Mohd Kassim and Nurzal Effiyana Ghazali. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.