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

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Date

2011-04-15

Authors

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

Journal Title

Journal ISSN

Volume Title

Publisher

Optical Society of America

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.

Description

Keywords

Keywords: Bragg grating coupler; Bragg resonance; Direct laser writing; First-order; High-precision; Phase shifted; Telecommunication wavelengths; Theoretical prediction; Transmission characteristics; Bragg gratings; Longitudinal control; Transparency; Light transm

Citation

URI

http://hdl.handle.net/1885/101078

Collections

ANU Research Publications

Source

Optics Letters

Type

Journal article

Book Title

Entity type

Access Statement

License Rights

DOI

10.1364/OL.36.001380

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