Abstract

It is shown that large permanent enhancements in second-order optical nonlinearity can be induced in germanosilicate fibers (both pure and codoped with phosphorus) by application of a transverse dc electric poling field in the presence of high-intensity light. The macroscopic inversion symmetry of the core material is broken by the excitation and alignment of defect centers. Significant frequency doubling results despite the absence of phase matching. The saturation (with both increasing dc field and increasing intensity) of this effect is investigated.

© 1988 Optical Society of America

Generation of permanent optically induced second-order nonlinearities in optical fibers by poling: comment

Victor Mizrahi and John E. Sipe
Appl. Opt. 28(11) 1976-1976 (1989)

High second-order nonlinearities in poled silicate fibers

P. G. Kazansky, L. Dong, and P. St. J. Russell
Opt. Lett. 19(10) 701-703 (1994)

Tunable holographic second-harmonic generators in high-birefringence optical fibers

M. E. Fermann, M. C. Farries, P. St. J. Russell, and L. Poyntz-Wright
Opt. Lett. 13(4) 282-284 (1988)

Second-harmonic generation using gratings optically written by mode interference in poled optical fibers

M. E. Fermann, L. Li, M. C. Farries, L. J. Poyntz-Wright, and L. Dong
Opt. Lett. 14(14) 748-750 (1989)

Creating second-order nonlinearity in pure synthetic silica optical fibers by thermal poling

Honglin An and Simon Fleming
Opt. Lett. 32(7) 832-834 (2007)