The effect of UV irradiation duty cycle on the 2nd harmonic coupling efficiency in optical fiber long period gratings

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dc.contributor.authorBarrington, James
dc.contributor.authorPartridge, Matthew
dc.contributor.authorJames, Stephen
dc.contributor.authorTatam, Ralph P.
dc.date.accessioned2019-07-25T13:36:05Z
dc.date.available2019-07-25T13:36:05Z
dc.date.issued2018-08-10
dc.description.abstractLong period gratings (LPGs) as a sensing platform have the potential for multi-parameter measurement through the utilization of 2nd order coupling resonance bands. Although the current literature has produced LPGs with 2nd order resonance bands, the fabrication parameters required to generate these features have not been elucidated. Here, using UV irradiation via the point-by-point method, it is shown that by varying the duty cycle it is possible to fabricate LPGs that exhibit 2nd, 3rd, and 4th order coupling resonance bands. Fabrication of LPGs with a 25% or 75% duty cycle produces distinct 2nd order resonance bands, which are not observed when a 50% duty cycle is adopted.en_UK
dc.identifier.citationBarrington JH, Partridge M, James SW, Tatam RP. (2019) The effect of UV irradiation duty cycle on the 2nd harmonic coupling efficiency in optical fiber long period gratings. Optics and Laser Technology, Volume 109, January 2019, pp. 227-232en_UK
dc.identifier.issn0030-3992
dc.identifier.urihttps://doi.org/10.1016/j.optlastec.2018.07.029
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/14390
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectOptical fiberen_UK
dc.subjectLong period gratingen_UK
dc.subjectOptical fiber filteren_UK
dc.subjectOptical fiber sensoren_UK
dc.titleThe effect of UV irradiation duty cycle on the 2nd harmonic coupling efficiency in optical fiber long period gratingsen_UK
dc.typeArticleen_UK

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