Photoinduced second-harmonic generation and luminescence of defects in Ge-doped silica fibers

Denise M. Krol; Robert M. Atkins; Paul J. Lemaire

doi:10.1117/12.51156

30 December 1991 Photoinduced second-harmonic generation and luminescence of defects in Ge-doped silica fibers

Denise M. Krol, Robert M. Atkins, Paul J. Lemaire

Proceedings Volume 1516, International Workshop on Photoinduced Self-Organization Effects in Optical Fiber; (1991) https://doi.org/10.1117/12.51156
Event: International Workshop on Photoinduced Self-Organization Effects in Optics, 1991, Quebec City, Canada

Abstract

We have measured the efficiency of photoinduced second-harmonic generation (SHG) in Ge- doped silica fibers containing different concentrations of 'GeO' and 'GeH' defects. The relative concentration of these defects were varied by heat treatments in H₂ and determined using luminescence spectroscopy. The results show that the GeH defect center, which can be excited in the visible (around 500 nm) and luminescence around 700 nm, plays a role in the photoinduced SHG process. On the other hand, the results do not allow us to rule out contributions from the GeO defects.

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Denise M. Krol, Robert M. Atkins, and Paul J. Lemaire "Photoinduced second-harmonic generation and luminescence of defects in Ge-doped silica fibers", Proc. SPIE 1516, International Workshop on Photoinduced Self-Organization Effects in Optical Fiber, (30 December 1991); https://doi.org/10.1117/12.51156

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