Showing papers by "Philip St. J. Russell published in 1993"
TL;DR: In this article, the first demonstration of highly reflecting fiber Bragg gratings written holographically by a single 20ns excimer laser pulse was reported, with reflection efficiencies of 65% combined with 1nm bandwidths at 1550nm.
Abstract: The first demonstration is reported of highly reflecting fibre Bragg gratings written holographically by a single 20ns excimer laser pulse; reflection efficiencies of 65% combined with 1nm bandwidths at 1550nm have been obtained. Single pulse gratings with FWHM bandwidths of 0.05nm (6GHz) have also been produced, to the authors' knowledge the narrowest reported to date.
80 citations
22 Dec 1993
TL;DR: In this article, the level of second order nonlinearity induced in glasses of different composition, experiments to clarify the form of the induced second order tensor in thermally-poled silica, and proposals on the underlying mechanisms both of electron implantation and thermal poling are reviewed.
Abstract: Recent work on glass poling and depoling using electron implantation is reviewed, including preliminary results on the level of second order nonlinearity induced in glasses of different composition, experiments to clarify the form of the induced second order tensor in thermally- poled silica, and proposals on the underlying mechanisms both of electron implantation and thermal poling.
4 citations