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Stability of thermally hypersensitised phosphosilicate waveguides and the characteristic growth curve
Optics Express
|May 9, 2009
Abstract:
Low temperature (80 0 C) hypersensitised hydrogen-loaded phosphosilicate optical fibre is found to be unstable, decaying progressively at room temperature. However, the hypersensitisation process linearises the grating growth characteristic curve. Further, a negative index contribution is inferred at low fluence in the presence of hydrogen.
