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Photoinduced Second Harmonic Generation in Optical Fibers: Materials and Mechanisms

Published online by Cambridge University Press:  15 February 2011

D. M. Krol ,
J. R. Simpson ,
D. J. DiGiovanni ,
R. M. Atkins ,
P. J. Lemaire  and
K. T. Nelson
D. M. Krol
Affiliation:
AT&T Bell Laboratories, 600 Mountain Avenue, Murray Hill, NJ 07974, USA
J. R. Simpson
Affiliation:
AT&T Bell Laboratories, 600 Mountain Avenue, Murray Hill, NJ 07974, USA
D. J. DiGiovanni
Affiliation:
AT&T Bell Laboratories, 600 Mountain Avenue, Murray Hill, NJ 07974, USA
R. M. Atkins
Affiliation:
AT&T Bell Laboratories, 600 Mountain Avenue, Murray Hill, NJ 07974, USA
P. J. Lemaire
Affiliation:
AT&T Bell Laboratories, 600 Mountain Avenue, Murray Hill, NJ 07974, USA
K. T. Nelson
Affiliation:
AT&T Bell Laboratories, 600 Mountain Avenue, Murray Hill, NJ 07974, USA
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Abstract

Permanent X(2) gratings can be written in doped silica fibers by coherent irradiation with light at ω and 2ω. The X(2) gratings give rise to phase-matched second harmonic generation (SHG), i.e. subsequent irradiation of the prepared fiber with light at ω results in an output at 2ω. The efficiency with which the gratings can be written depends on the nature and concentration of defect states induced by dopants in the, glass. We present results for fibers doped with Ge and rare earth ions and discuss the implications of our results for the various mechanisms that have been proposed to explain photoinduced SHG in fibers.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 244: Symposium J – Optical Waveguide Materials , 1991 , 53
Copyright
Copyright © Materials Research Society 1992

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References

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