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New Glasses for Optical Fibres and Their Applications (invited contribution) | ||
| Iraqi Journal of Applied Physics Letters | ||
| Article 1, Volume 2, Issue 4, 2009, Pages 19-20 | ||
| Author | ||
| D.N. Payne | ||
| Abstract | ||
| Glasses with high-refractive index, high acousto-optic merit, low phonon energy and good solubility of the rare-earth are essential for optical waveguides devices of the future. At the ORC, research on advanced materials for multifunction waveguides is driven by device requirements. A more efficient optical fibre amplifier for 1.3um requires new glasses of lower vibrational energies to minimise nonradiative decay. Planar lossless splitters rely on a new waveguide material which allows high incorporation of erbium. Modulators need bulk or fibre optics which interact with acousto-optic power. Other new glasses with very high photosensitivity are being developed for fibre Bragg gratings, and highly non-linear glasses for all-optical switches. It is clear that for functions as diverse as amplification, splitting, modulation, switching or filtering the key to these devices is new glass materials. | ||
| Keywords | ||
| Optical fibers; Glassess; Refractive index | ||
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