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Title

Adaptive aberration compensation for three-dimensional micro-fabrication of photonic crystals in lithium niobate

Author(s)

Cumming, Benjamin P.;  Jesacher, Alexander;  Booth, Martin J.;  Wilson, Tony;  Gu, Min

Abstract

We present the use of a liquid crystal spatial light modulator to correct for the refractive-index mismatch induced spherical aberration in a high refractive-index lithium niobate crystal when a low repetition rate amplified laser is used for the direct fabrication of three-dimensional micro-structures. By correcting the aberration based on experimentally determined values, we show that the size of written structures decreases dramatically, which allows the fabrication of high quality micro-structures such as three-dimensional photonic crystals. We demonstrate that, through the use of adaptive optics, the fabrication depth and the stopgap strength in the corresponding photonic crystals are increased by a factor of two to three.

Publication type

Journal article

Research centre

Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Centre for Micro-Photonics

Source

Optics Express, Vol. 19, no. 10 (May 2011), pp. 9419-9425

Publication year

2011

FOR Code(s)

0205 Optical Physics;  0903 Biomedical Engineering;  1113 Ophthalmology and Optometry

Keyword(s)

Aberration;  LiNbO3;  Liquid crystal;  Lithium niobate;  Photonic crystals;  Polarization;  Refractive index;  Three-dimensional microstructures

Publisher

Optical Society of America

ISSN

1094-4087

Publisher URL

http://dx.doi.org/10.1364/oe.19.009419

Copyright

Copyright © 2011 Optical Society of America. Published version of the paper reproduced here in accordance with the copyright policy of the publisher. This paper was published in Optics Express 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: http://dx.doi.org/10.1364/oe.19.009419. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

Additional information

The authors acknowledge support from the Australian Research Council (ARC) Centre for Ultrahigh-bandwidth Devices for Optical Systems (CUDOS), Innsbruck Medical University, EPSRC (EP/E055818/1) and the Leverhulme Trust.

Full text

Peer reviewed