Multi-wavelength filters in silicon using superposition sidewall Bragg grating devices

Strain, M. J., Thoms, S. , Macintyre, D. S. and Sorel, M. (2014) Multi-wavelength filters in silicon using superposition sidewall Bragg grating devices. Optics Letters, 39(2), pp. 413-416. (doi: 10.1364/OL.39.000413)

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, N individual filter responses can be fabricated with a device length N× 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.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Sorel, Professor Marc and Thoms, Dr Stephen and Strain, Dr Michael and Macintyre, Dr Douglas
• Authors: Strain, M. J., Thoms, S., Macintyre, D. S., and Sorel, M.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: Optics Letters
• Publisher: Optical Society of America
• ISSN: 0146-9592
• ISSN (Online): 1539-4794