Optical modulation device

Details Optical modulation device Optical modulation device

1988-09-22

1989-12-19

Sikes, William L.

G02B 610

Patent

active

048878782

ABSTRACT:
An external light modulator which relies on efficient changes in electro-optic coupling of light between copolarized guided modes in a single waveguide channel formed in a lithium niobate or lithium tantalate substrate by proton exchange with benzoic acid.

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W. B. Spillman, Jr. et al., "Optical Waveguides in LiTaO.sub.3 Formed by Proton Exchange", Optics Letters, Sep. 1983, pp. 497-498.
R. V. Schmidt et al., "Efficient Optical Waveguide Switch/Amplitude Modulator", Optics Letters, Feb. 1978, pp. 45-47.
J. L. Jackel et al., "Proton Exchange for High-Index Waveguides in LiNbO.sub.3 ", Appl. Phys. Lett., Oct. 1982, pp. 607-608.
G. D. H. King et al., "Analogue-To-Digital Conversion Using Integrated Electro-Optic Interferometers", Electronics Lett., Dec. 9, 1982, pp. 1099-1100.
L. Hutcheson, "Inegrated Optics", The Optical Industry and Systems Purchasing Director, 1984, pp. E-82 to E-84.

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