Optimizing the net reflectivity of point-by-point fiber Bragg gratings: the role of scattering loss

Robert J. Williams*, Nemanja Jovanovic, Graham D. Marshall, Graham N. Smith, M. J. Steel, Michael J. Withford

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)
2 Downloads (Pure)

Abstract

We present an experimental and theoretical analysis of the influence of scattering losses on the net reflectivity of fiber Bragg gratings inscribed with a femtosecond laser and the point-by-point technique. We demonstrate that the ratio of the coupling strength coefficient to the scattering loss coefficient varies significantly with the inscribing laser pulse energy, and highlight that an optimal pulse-energy range exists for achieving high-reflectivity gratings. These results are critical for exploiting high power fiber laser opportunities based on point-by-point gratings.

Original languageEnglish
Pages (from-to)13451-13456
Number of pages6
JournalOptics Express
Volume20
Issue number12
Publication statusPublished - 4 Jun 2012

Bibliographical note

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://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-20-12-13451]. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

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