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Permanent Photoinduced Refractive Index Changes in Rare Earth Doped Glasses

Published online by Cambridge University Press:  15 February 2011

Glen M. Williams ,
Jacqueline A. Ruller  and
E. Joseph Friebele
Glen M. Williams
Affiliation:
Code 6505, Optical Sciences Division, Naval Research Laboratory, Washington, DC 20375.
Jacqueline A. Ruller
Affiliation:
Code 6505, Optical Sciences Division, Naval Research Laboratory, Washington, DC 20375.
E. Joseph Friebele
Affiliation:
Code 6505, Optical Sciences Division, Naval Research Laboratory, Washington, DC 20375.
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Abstract

Permanent refractive index gratings were holographically photowritten into rare earth doped glasses using the 488 rn line of a Ar Ion laser. The rare earths Pr3+, Tb3+, and Eu2+ were examined. Experiments were performed to elucidate the mechanism responsible for the photoinduced index change. A model is presented in which the index change is accomplished through photoionization of the rare earth dopant and subsequent trapping of the free carrier. The viability of these materials for use in optical fiber grating devices is discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 244: Symposium J – Optical Waveguide Materials , 1991 , 59
Copyright
Copyright © Materials Research Society 1992

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References

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