Photoinduced refractive-index changes in germanosilicate fibres

Hand, D.P. and Russell, P.St.J. (1990) Photoinduced refractive-index changes in germanosilicate fibres Optics Letters, 15, (2), pp. 102-104. (doi:10.1364/OL.15.000102).


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Photoinduced guided index changes approaching in the range 488-784 nm, measured using a simple interferometric technique, are reported in germanosilicate single-mode optical fibers exposed to the 488-nm line of an Ar+ laser running multifrequency. The wavelength dependence and dynamics of the writing process are characterized, and the material dispersion of the induced Deltan(lambda) is shown to be weak. The effect is placed in the context of related research on color centers in these fibers, and two different mechanisms are proposed that lead to quantitative estimates in rough agreement with the measured Deltan values.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1364/OL.15.000102
ISSNs: 0146-9592 (print)
Related URLs:
ePrint ID: 78424
Date :
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Date Deposited: 11 Mar 2010
Last Modified: 18 Apr 2017 20:22
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