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

Mykhaylo Dubov*, Sonia Boscolo, David J. Webb

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

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.
Original languageEnglish
Pages (from-to)1708-1716
Number of pages9
JournalOptical Materials Express
Volume4
Issue number8
Early online date24 Jul 2014
DOIs
Publication statusPublished - 1 Aug 2014

Fingerprint

Pulse generators
Ultrashort pulses
Transparency
Refractive index
Waveguides
Lithium
Infrared radiation
Crystals
lithium niobate

Bibliographical note

© 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).

Keywords

  • waveguide
  • femtosecond inscription
  • lithium niobate
  • microstructured waveguide
  • direct femtosecond laser microfabrication

Cite this

@article{adc74d62b84b47388010a330eb019cb1,
title = "Microstructured waveguides in z-cut LiNbO3 by high-repetition rate direct femtosecond laser inscription",
abstract = "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.",
keywords = "waveguide, femtosecond inscription, lithium niobate, microstructured waveguide, direct femtosecond laser microfabrication",
author = "Mykhaylo Dubov and Sonia Boscolo and Webb, {David J.}",
note = "{\circledC} 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).",
year = "2014",
month = "8",
day = "1",
doi = "10.1364/OME.4.001708",
language = "English",
volume = "4",
pages = "1708--1716",
journal = "Optical Materials Express",
issn = "2159-3930",
publisher = "The Optical Society",
number = "8",

}

Microstructured waveguides in z-cut LiNbO3 by high-repetition rate direct femtosecond laser inscription. / Dubov, Mykhaylo; Boscolo, Sonia; Webb, David J.

In: Optical Materials Express, Vol. 4, No. 8, 01.08.2014, p. 1708-1716.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Microstructured waveguides in z-cut LiNbO3 by high-repetition rate direct femtosecond laser inscription

AU - Dubov, Mykhaylo

AU - Boscolo, Sonia

AU - Webb, David J.

N1 - © 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).

PY - 2014/8/1

Y1 - 2014/8/1

N2 - 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.

AB - 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.

KW - waveguide

KW - femtosecond inscription

KW - lithium niobate

KW - microstructured waveguide

KW - direct femtosecond laser microfabrication

UR - http://www.scopus.com/inward/record.url?scp=84957605037&partnerID=8YFLogxK

U2 - 10.1364/OME.4.001708

DO - 10.1364/OME.4.001708

M3 - Article

AN - SCOPUS:84957605037

VL - 4

SP - 1708

EP - 1716

JO - Optical Materials Express

JF - Optical Materials Express

SN - 2159-3930

IS - 8

ER -