Method for production of SiO.sub.2 glass material having regions

Details Method for production of SiO.sub.2 glass material having regions Method for production of SiO.sub.2 glass material having regions

1997-01-14

1998-06-09

Group, Karl

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 54, 65385, 65392, 65394, C03C 1304

Patent

active

057633401

ABSTRACT:
A method for producing a SiO.sub.2 glass material having regions changed in light refractive index is provided which comprises implanting at least 5.times.10.sup.19 Ge ions/cm.sup.3 into a SiO.sub.2 glass substrate, heat-treating the substrate at a temperature exceeding 300.degree. C., and exposing the substrate to an ultraviolet light. Also provided is a SiO.sub.2 glass material produced by the method.

REFERENCES:
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patent: 5104209 (1992-04-01), Hill et al.
patent: 5235659 (1993-08-01), Atkins et al.
patent: 5478371 (1995-12-01), Lemaire et al.
patent: 5500031 (1996-03-01), Atkins et al.
K. O. Hill, et al., "Photosensitivity in Optical Fiber Waveguides: Application to Reflection Filter Fabrication", Appl. Phys. Lett., vol. 32, No. 10 (1978), pp. 647-649.
Kelly D. Simmons, et al., "Photosensitivity of Solgel-Derived Germanosilicate Planar Waveguides", Optics Letter, vol. 18, No. 1, (1993), pp. 25-27.

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