Microstructured waveguides in z-cut LiNbO3 by high-repetition rate direct femtosecond laser inscription


We report on the operational parameters that are required to fabricate buried, microstructured waveguides in a z-cut lithium niobate crystal by the method of direct femtosecond laser inscription using a highrepetition-rate, chirped-pulse oscillator system. Refractive index contrasts as high as −0.0127 have been achieved for individual modification tracks. The results pave the way for developing microstructured WGs with low-loss operation across a wide spectral range, extending into the mid-infrared region up to the end of the transparency range of the host material.

Publication DOI: https://doi.org/10.1364/OME.4.001708
Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
Additional Information: © OSA 2014 This paper was published in Optical Materials 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://www.opticsinfobase.org/oe/abstract.cfm?uri=ome-4-8-1708. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law. Funding: Leverhulme Trust (grant RPG-278) and EPSC (grant EP/J010413/1).
Uncontrolled Keywords: waveguide,femtosecond inscription,lithium niobate,microstructured waveguide,direct femtosecond laser microfabrication,Electronic, Optical and Magnetic Materials
Publication ISSN: 2159-3930
Last Modified: 15 Feb 2024 08:59
Date Deposited: 04 Sep 2014 12:40
Full Text Link: http://www.opti ... RI=ome-4-8-1708
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2014-08-01
Published Online Date: 2014-07-24
Authors: Dubov, Mykhaylo (ORCID Profile 0000-0002-6764-683X)
Boscolo, Sonia (ORCID Profile 0000-0001-5388-2893)
Webb, David J. (ORCID Profile 0000-0002-5495-1296)



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