Abstract
Heat treatment with the presence of hydrogen (H2) that react with. GeE' centers (·GeΞ) at high temperature will weaken the refractive index modulation of grating fabricated in hydrogen-loaded normal germanosilicate fiber. Pre- annealing treatment of the above fiber was demonstrated to be able to enhance the grating's thermal stability effectively. 0.37-nm blue-shift of the reflected Bragg wavelength was observed.
| Original language | English |
|---|---|
| Pages (from-to) | 256-258 |
| Number of pages | 3 |
| Journal | Chinese Optics Letters |
| Volume | 1 |
| Issue number | 5 |
| Publication status | Published - 1 May 2003 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering
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