Control of light transmission in laser-written phase-shifted Bragg grating couplers

Sangwoo Ha, Martin Ams*, Graham D. Marshall, Dragomir N. Neshev, Andrey A. Sukhorukov, Yuri S. Kivshar, Michael J. Withford

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)
9 Downloads (Pure)


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.

Original languageEnglish
Pages (from-to)1380-1382
Number of pages3
JournalOptics Letters
Issue number8
Publication statusPublished - 15 Apr 2011

Bibliographical note

This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: []. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.


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