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Optics Letters

Optics Letters


  • Vol. 36, Iss. 8 — Apr. 15, 2011
  • pp: 1380–1382

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, and Michael J. Withford  »View Author Affiliations

Optics Letters, Vol. 36, Issue 8, pp. 1380-1382 (2011)

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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

OCIS Codes
(230.1480) Optical devices : Bragg reflectors
(230.7370) Optical devices : Waveguides
(350.3390) Other areas of optics : Laser materials processing

ToC Category:
Optical Devices

Original Manuscript: January 11, 2011
Revised Manuscript: March 15, 2011
Manuscript Accepted: March 16, 2011
Published: April 11, 2011

Sangwoo Ha, Martin Ams, Graham D. Marshall, Dragomir N. Neshev, Andrey A. Sukhorukov, Yuri S. Kivshar, and Michael J. Withford, "Control of light transmission in laser-written phase-shifted Bragg grating couplers," Opt. Lett. 36, 1380-1382 (2011)

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