Title :
Volume transmission gratings in dichromated gelatin for near infra red applications
Author :
Sheat, D.E. ; Miles, A.J.M.
Author_Institution :
BT Labs., Ipswich, UK
Abstract :
It is possible to increase the dispersion of a volume transmission grating by using a double pass through the device. The extension of this technology to achieve integrated devices is discussed. The importance of the control of the dichromated gelatin film parameters, in order to achieve high efficiency and polarisation insensitivity, is outlined. Preliminary results for 1050 l/mm gratings are presented
Keywords :
frequency division multiplexing; gelatin; holographic gratings; integrated optics; multiplexing equipment; optical communication equipment; optical films; WDM; dichromated gelatin; dispersion; double pass; film optimisation; high efficiency; holographic gratings; integrated devices; multiplexer; near IR; near infra red applications; polarisation insensitivity; volume transmission grating;
Conference_Titel :
Holographic Systems, Components and Applications, 1991., Third International Conference on
Conference_Location :
Edinburgh
Print_ISBN :
0-85296-528-1
