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Published June 25, 2007 | public
Journal Article Open

Towards a millivolt optical modulator with nano-slot waveguides


We describe a class of modulator design involving slot waveguides and electro-optic polymer claddings. Such geometries enable massive enhancement of index tuning when compared to more conventional geometries. We present a semi-analytic method of predicting the index tuning achievable for a given geometry and electro-optic material. Based on these studies, as well as previous experimental results, we show designs for slot waveguide modulators that, when realized in a Mach-Zehnder configuration, will allow for modulation voltages that are orders of magnitude lower than the state of the art. We also discuss experimental results for nano-slot waveguides.

Additional Information

© 2007 Optical Society of America Original Manuscript: March 23, 2007; Manuscript Accepted: June 14, 2007; Revised Manuscript: June 9, 2007; Published: June 20, 2007. This work was supported in part by the Air Force Office of Scientific Research and the Cornell Nanoscale Facility, which is funded as part of the National Nanotechnology Infrastructure Network by the National Science Foundation.


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