Light-induced erasure of self-organized chi((2)) gratings in optical fibers.

Self-organized chi((2)) gratings in optical fiber, prepared by irradiating the fiber with 1.06-microm light from a Q-switched mode-locked Nd:YAG laser simultaneously with its second harmonic, can be erased optically. This is accomplished by irradiating the prepared fiber with the 532-nm mode-locked Q-switched light alone, without the 1.06-microm light, or with intense green or blue light from an argon laser. The erasure is reversible, and the fiber can be reprepared as before for second-harmonic conversion. The nonexponential time dependence of the erasure process can be explained by a model involving charge separation during seeding and recombination during erasure.

[1]  B. Valk,et al.  Second harmonic generation in Ge-doped fibers with a mode-locked Kr + laser , 1987 .

[2]  R. W. Terhune,et al.  Second-harmonic generation in fibers , 1987 .

[3]  Yoshinori Hibino,et al.  Formation mechanism of drawing‐induced E’ centers in silica optical fibers , 1985 .

[4]  H. Fevrier,et al.  Analysis of frequency-doubling processes in optical fibers using Raman spectroscopy. , 1987, Optics letters.

[5]  D C Johnson,et al.  Sum-frequency light generation in optical fibers. , 1980, Optics letters.

[6]  Y. Hibino,et al.  Defect structure and formation mechanism of drawing‐induced absorption at 630 nm in silica optical fibers , 1986 .

[7]  U Osterberg,et al.  Dye laser pumped by Nd:YAG laser pulses frequency doubled in a glass optical fiber. , 1986, Optics letters.

[8]  David N. Payne,et al.  Second harmonic generation in an optical fibre by self written x(2) grating , 1987 .

[9]  Y. Sasaki,et al.  Phase-matched sum-frequency light generation in optical fibers , 1981 .

[10]  E. J. Friebele,et al.  Fundamental defect centers in glass: Electron spin resonance and optical absorption studies of irradiated phosphorus‐doped silica glass and optical fibers , 1983 .

[11]  R. Stolen,et al.  Self-organized phase-matched harmonic generation in optical fibers. , 1987, Optics letters.

[12]  E. J. Friebele,et al.  Defect centers in a germanium-doped silica-core optical fiber , 1974 .

[13]  Robert H. Magruder,et al.  Preparation effects on the UV optical properties of GeO2 glasses , 1985 .

[14]  D. Dunstan,et al.  Indium phosphide and quaternary doping superlattices grown by liquid-phase epitaxy , 1987 .

[16]  F. Payne.  Second-harmonic generation in single-mode optical fibres , 1987 .

[17]  U Osterberg,et al.  Experimental studies on efficient frequency doubling in glass optical fibers. , 1987, Optics letters.