Method for producing photoinduced bragg gratings by irradiating

Details Method for producing photoinduced bragg gratings by irradiating Method for producing photoinduced bragg gratings by irradiating

1994-09-13

1995-12-26

Simmons, David A.

Glass manufacturing

Processes of manufacturing fibers, filaments, or preforms

With measuring, controlling, sensing, programming, timing,...

65386, 65397, 65425, 65 3011, 65424, 65111, C03B 3710

Patent

active

054783712

ABSTRACT:
In accordance with the invention, the index of refraction of a region of a glass body is selectively increased by treating the material with hydrogen and then simultaneously applying heat and actinic radiation to the region. Preferably the body is heated to a temperature in excess of 150.degree. C. and the heat and radiation are simultaneously applied. The result is a substantial and long-lived increase in excess of 5.times.10.sup.-5 in the refractive index of the irradiated region. This process can be used to make and adjust a variety of optical waveguide devices such as photoinduced Bragg gratings.

REFERENCES:
patent: 4474427 (1984-10-01), Hill et al.
patent: 4504297 (1985-03-01), Kosinski et al.
patent: 4725110 (1988-02-01), Glenn et al.
patent: 4856859 (1989-08-01), Imoto
patent: 4979976 (1990-12-01), Havens
patent: 5104209 (1992-04-01), Hill et al.
patent: 5235659 (1993-08-01), Atkins
patent: 5267343 (1993-11-01), Lyons et al.
patent: 5271024 (1993-12-01), Huber
patent: 5287427 (1994-02-01), Atkins et al.
patent: 5327515 (1994-07-01), Anderson et al.
patent: 5367588 (1994-11-01), Hill
Translation of West German Patent No. 2,843,276, issued in W. Germany on Sep. 1979 to Siemens.
G. D. Maxwell, et al. "UV written 13dB Reflection Filters in Hydrogenated Low Loss Planar Silica Waveguides", Electronics Letters, vol. 29, No. 5, pp. 425-426 (1993).
R. M. Atkins, et al. "Effects of elevated temperature hydrogen exposure on short-wavelength optical losses and defect concentrations in germanosilicate optical fibers", J. Appl. Phys., vol. 72, pp. 344-348 (1992).

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