Abstract
Multiple-filter stopbands, with the potential to be nonuniformly spaced in frequency, are realized in a single integrated Bragg grating device on silicon. By utilizing a superposition of sidewall relief grating functions, individual filter responses can be fabricated with a device length shorter than the equivalent serial set of gratings. Arbitrary combinations of eight-basis filter responses were demonstrated as selected by an eight-bit pseudorandom number generator, showing the flexibility of the complex Bragg grating device design.
© 2014 Optical Society of America
Full Article | PDF ArticleMore Like This
Lawrence R. Chen, Jia Li, Mina Spasojevic, and Rhys Adams
Opt. Express 21(17) 19624-19633 (2013)
Matthew W. Puckett, Felipe Vallini, Andrew Grieco, and Yeshaiahu Fainman
Opt. Lett. 40(3) 379-382 (2015)
Weifeng Zhang, Nasrin Ehteshami, Weilin Liu, and Jianping Yao
Opt. Lett. 40(13) 3153-3156 (2015)