Abstract
We demonstrate the fabrication by direct laser writing and the operation of a directional coupler containing Bragg gratings in each waveguide. We achieve high-precision control over the longitudinal shift between the gratings, which feature first-order Bragg resonance at telecommunication wavelengths. We observe fundamental differences between light transmission characteristics in couplers with unshifted and shifted gratings in agreement with theoretical predictions.
© 2011 Optical Society of America
Full Article | PDF ArticleMore Like This
Graham D. Marshall, Peter Dekker, Martin Ams, James A. Piper, and Michael J. Withford
Opt. Lett. 33(9) 956-958 (2008)
Sangwoo Ha and Andrey A. Sukhorukov
J. Opt. Soc. Am. B 25(12) C15-C22 (2008)
Jason R. Grenier, Luís A. Fernandes, J. Stewart Aitchison, Paulo V. S. Marques, and Peter R. Herman
Opt. Lett. 37(12) 2289-2291 (2012)