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Pulse Energy Dependence of Defect Generation in Bragg Grating Optical Fiber Materials

Published online by Cambridge University Press:  15 February 2011

T. E. Tsai ,
C. G. Askins  and
E. J. Friebele
T. E. Tsai
Affiliation:
GEO Centers, Inc. Fort Washington, MD 20744
C. G. Askins
Affiliation:
Naval Research Laboratory, Washington, DC 20375
E. J. Friebele
Affiliation:
Naval Research Laboratory, Washington, DC 20375
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Abstract

Ge-associated defect centers induced by 5 eV (∼ 245 nm) photons of various intensities in Ge-doped silica were studied using electron spin resonance (ESR). We found that Ge E' centers observed in Bragg grating Ge-doped silica core fibers are induced and bleached by one- and two-photon absorption processes, respectively. The observation that Ge E's are the only paramagnetic centers induced by low intensity 5 eV photons supports the proposal that the Ge E' center is responsible for the photoinduced structures observed in both Bragg grating and second-harmonic-generation (SHG) fibers.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 244: Symposium J – Optical Waveguide Materials , 1991 , 47
Copyright
Copyright © Materials Research Society 1992

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References

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