Tomlins, P (2004) The development of a new model for the Raman gain spectrum in silica optical fibres. NPL Report. DEM-EM 002

Text DEM_EM2.pdf Download (297kB)

Abstract

This report describes the development of a new model for the vibrational and Raman gain spectra of vitreous silica used for optical fibres. The technique requires a limited number of input parameters, is statistical and computationally inexpensive. Model results indicate some correlation with measured spectra that show promise for further development of the technique.
A model such as that reported on here may be of interest to optical fibre manufacturers, since it potentially allows the straight forward modelling of Raman spectra for different fibre core dopants. It may also prove a useful contribution to the understanding of the vitreous state of materials. However, the force constant simplifications made in this investigation should be revised to include long range interactions.

Item Type:	Report/Guide (NPL Report)
NPL Report No.:	DEM-EM 002
Keywords:	Raman amplifier, vitreous silica, fibre optics, modelling
Subjects:	Optical Radiation and Photonics Optical Radiation and Photonics > Optical Comms. And Data
Last Modified:	02 Feb 2018 13:16
URI:	https://eprintspublications.npl.co.uk/id/eprint/3077