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

R. J. Williams, N. Jovanovic, G. D. Marshall, G. N. Smith, M. J. Steel, M. J. Withford

Research output: Contribution to journalArticle (Academic Journal)

24 Citations (Scopus)

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. (C) 2012 Optical Society of America
Original languageEnglish
Number of pages6
JournalOptics Express
DOIs
Publication statusPublished - 2012

Bibliographical note

M1 - 12

6

Keywords

  • linearly polarized fiber femtosecond laser phase mask ir laser inscription spectra

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