Integrated optical waveguide coupler

Details Integrated optical waveguide coupler Integrated optical waveguide coupler

1975-09-09

1977-11-22

Corbin, John K.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

350 96WG, 17910041L, 1791003V, 1791003E, 358128, G11B 712, G02B 514

Patent

active

040593380

ABSTRACT:
An integrated optical waveguide coupler for coupling energy in one direction to illuminate an optical stylus tip and for carrying energy received by said tip in the opposite direction to a remote transducer. The integrated coupler includes a substrate comprising a first relatively low refractive index material having a face and a second relatively high refractive index material formed on said face, as a right angle prism. A low refractive index layer of predetermined thickness is interposed between said substrate and the optical waveguide. Light energy incident to a surface of the prism is coupled to the waveguide.

REFERENCES:
patent: 3584230 (1971-06-01), Tien
patent: 3948583 (1976-04-01), Tien
Fernike, F., Midwinter, J. E. "Improved Version of the Evanescent-Wave Coupler" IEEE J. of Quantum Elec., vol. QE-6, No. 9 Sept. 1970, pp. 577-578.
Harris, J. H., Shubert, R., Polky, J. N. "Beam Coupling to Films" J. Optical Society of America, vol. 60, No. 8, Aug. 1970, pp. 1007-1016.

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