Lithographic method of making optical fibers

Details Lithographic method of making optical fibers Lithographic method of making optical fibers

1981-12-22

1984-01-31

Fisher, Richard V.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 311, 65 31, C03B 37025, C03B 37075, C03C 1500

Patent

active

044287615

ABSTRACT:
Selected portions of the interior surface of a substrate tube, or of the cladding or core layers deposited on the interior surface of the substrate tube, are treated by one or more process steps such as shaping, diffusing, leaching, or depositing. Patterning processes such as photolithography and lift-off are employed to define the selected portions. The resulting core and/or cladding layers of the fiber can be made to have a variety of geometric shapes and composition profiles useful, for example, in realizing birefringent fibers and multiple-core fibers. Also described is the similar treating of metal layers and the incorporation of such layers into the fiber.

REFERENCES:
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patent: 4277272 (1981-07-01), Schneider
patent: 4335934 (1982-06-01), Black et al.
patent: 4343890 (1982-08-01), Phillips et al.
Tasker et al., "Low-Loss Optical Waveguides . . . ", Proceedings of the IEEE, vol. 62, pp. 1281-1282 (Sep. 1974).
Hosaka et al., "Low-Loss Single Polarization Fibres . . . ", Electronics Letters, vol. 17, No. 15, Jul. 23, 1981, pp. 530-531.
Kitayama et al., "Polarization-Maintaining Single-Mode Fibre . . . ", Electronics Letters, vol. 17, No. 12, Jun. 11, 1981, pp. 419-420.
Hosaka et al., "Single Mode Fibers With Asymmetrical . . . ", Electronics Letters, vol. 17, No. 5, Mar. 5, 1981, pp. 191-193.
MacChesney et al., ". . . Preparation of Low-Loss . . . Optical Fibers", Proceedings of the IEEE, Sep. 1974, pp. 1280-1281.

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