Abstract
We present results on the fabrication of low-loss Fibre Bragg Gratings (FBGs) that were directly inscribed into the fibre core using focused femtosecond laser pulses in a continuous core-scanning technique [1]. This method enables the fabrication of strong Type I-IR gratings with virtually arbitrary reflection and dispersion profiles. While the core-scanning technique offers the same flexibility over the grating period that is the distinctive feature of point-by-point inscribed gratings (which are typically Type II-IR damage-gratings), it also results in ultra-low scattering losses that can normally only be achieved in phase-mask written gratings. The types of structures that have been fabricated include uniform FBGs, chirped FBGs, apodised FBGs and phase-shifted gratings. All gratings were inscribed with circular polarized light in order to reduce losses associated with light scattering on nano-gratings or nano-crevices, respectively [2].
Original language | English |
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Title of host publication | CLEO/Europe-EQEC 2015 |
Subtitle of host publication | Proceedings of European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference |
Place of Publication | Washington, DC |
Publisher | Optical Society of America (OSA) |
Number of pages | 1 |
ISBN (Electronic) | 9781467374750 |
Publication status | Published - 2015 |
Event | 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, CLEO/Europe-EQEC 2015 - Munich, Germany Duration: 21 Jun 2015 → 25 Jun 2015 |
Conference
Conference | 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, CLEO/Europe-EQEC 2015 |
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Country/Territory | Germany |
City | Munich |
Period | 21/06/15 → 25/06/15 |