Abstract
Reflective fibre Bragg gratings for operation at 2 μm have been fabricated with the use of a lithographic phase mask. Bragg gratings operating at a wavelength of 2025 nm with reflectivities of up to 93.3% were produced with typical bandwidths of 0.4 nm (FWHM). The gratings were written using a pulsed 266 nm UV laser source and were monitored in real time with the use of a scanning monochromator and a 2 μm Tm fibre fluorescence source. The reflection of the fibre Bragg gratings could be made with particular specifications for use as internal fibre mirrors in fibre lasers or in WDM applications.
Original language | English |
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Pages (from-to) | 1747-1752 |
Number of pages | 6 |
Journal | Measurement Science and Technology |
Volume | 14 |
Issue number | 10 |
DOIs | |
Publication status | Published - 1 Jan 2003 |
Externally published | Yes |
Keywords
- 2 μm
- Fabrication
- Fibre Bragg grating
- Fluorescence
- Phase mask
- Thulium
- Tm
ASJC Scopus subject areas
- Instrumentation
- Applied Mathematics