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Proceedings Paper

Ion Exchange Method - Diffusion Barrier Investigations
Author(s): G. Pielak; M. Szustakowski; A. Kiezun
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Paper Abstract

Ion exchange method is used to GRIN-rod lenses manufacturing. In this process the ion exchange occurs between bulk glass (rod) and a molten salt. It was find that diffusion barrier exists on a border of glass surface and molten salt. The investigations of this barrier show that it value varies with ion exchange time and process temperature. It was find that in the case when thalium glass rod was treated in KNO3, bath, the minimum of the potential after 24 h was in temperature of 407°C, after 48 h in 422°C, after 72 h in 438°C and so on. So there are the possibility to keep the minimum of diffusion barrier by changing the temperature of the process and then the effectiveness of ion exchange process is the most effective. The time needed to obtain suitable refractive index distribution in a process when temperature was linearly changed from 400°C to 460°C was shorter of about 30% compare with the process in which temperature was constant and equal 450°C.

Paper Details

Date Published: 30 January 1990
PDF: 4 pages
Proc. SPIE 1085, Optical Fibres and Their Applications V, (30 January 1990); doi: 10.1117/12.952956
Show Author Affiliations
G. Pielak, Institute of Plasma Physics and Laser Microfusion (Poland)
M. Szustakowski, Institute of Plasma Physics and Laser Microfusion (Poland)
A. Kiezun, Institute of Technical Physics (Poland)


Published in SPIE Proceedings Vol. 1085:
Optical Fibres and Their Applications V

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