Deuterium treatment of low water peak fiber

Abstract

The deuterium (D₂) treatment of low water peak single-mode fiber (LWP-SMF) after drawing has been investigated. The D₂ treatment time and concentration have important effect on fiber’s properties after D₂ treatment. The insufficient treatment of D₂ cannot ensure fiber resistant to hydrogen aging, whereas excessive treatment of D₂ will result in excess loss on fiber at 1383 nm. The optimization on viscosity match between the core and the cladding is helpful on problem solving of excess loss after the D₂ treatment. However, by designing proper time and D₂ concentration in the D₂ treatment process, it can produce fiber with good hydrogen aging resistance and low excess loss and lower the cost of the D₂ treatment process.

Keywords

deuterium (D₂) treatment / time / concentration / excess loss / low water peak (LWP) fiber

References

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2014 Higher Education Press and Springer-Verlag Berlin Heidelberg