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Control of light transmission in laser-written phase-shifted Bragg grating couplers |
Optics Letters, Vol. 36, Issue 8, pp. 1380-1382 (2011)
http://dx.doi.org/10.1364/OL.36.001380
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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
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
History
Original Manuscript: January 11, 2011
Revised Manuscript: March 15, 2011
Manuscript Accepted: March 16, 2011
Published: April 11, 2011
Citation
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)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-8-1380
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