Abstract
Fibre Bragg gratings (FBGs) are key components in fibre laser development, and femtosecond laser inscription has paved the way for highly stable and robust monolithic fibre laser systems [1]. There are two fundamental approaches for femtosecond laser inscription of FBGs: phase mask scanning [2] and the point-by-point (PbP) [3] technique. The phase mask technique offers high period stability and reproducibility but limited flexibility over the grating period. The PbP technique offers complete flexibility in the grating period; in fact local phase shifts and continuous chirp have been demonstrated [4]. However these gratings exhibit significant scattering loss [5]. Zhou et al. [6] proposed a new writing technique where 4th order gratings where inscribed line by line; however these still show high scattering losses. We present a core-scanning technique for FBGs using a PbP inscription setup that benefits from the flexibility over the grating period, but has drastically reduced scattering losses.
Original language | English |
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Title of host publication | 2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference (CLEO EUROPE/IQEC 2013) |
Place of Publication | Piscataway, NJ |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Pages | 1-1 |
Number of pages | 1 |
ISBN (Electronic) | 9781479905942 , 9781479905935 |
ISBN (Print) | 9781479905928 |
DOIs | |
Publication status | Published - 2013 |
Event | 2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC 2013 - Munich, Germany Duration: 12 May 2013 → 16 May 2013 |
Other
Other | 2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC 2013 |
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Country/Territory | Germany |
City | Munich |
Period | 12/05/13 → 16/05/13 |